OneSky
What it is
OneSky is a localization platform for app and game development that combines AI tools with human collaboration. Its translation management system automates localization workflows, and project users can communicate directly with OneSky translators. Automated validation checks whether translated text is missing placeholders, and customers can choose from more than 70 languages. The platform includes translation memory, glossary management, and context screenshots, and supports formats such as Android XML, Apple strings, CSV, JSON, HTML, gettext, Microsoft Office formats, YAML, XLIFF, and TMX. Listed integrations include iOS, Android, the Apple App Store, Google Play Store, and APIs. OneSky also offers app localization with access to professional translators and testing on actual devices to review localized interfaces. A free plan is available, with no credit card required. Listed starting prices include $0.01 per month for AI-driven quality estimation and multi-agent translation, $0.04 per month for Review, and $0.05 per month for Translation. OneSky provides support through [email protected].
For and against
For
- Free plan requires no credit card
- Supports more than 70 languages
- Automated checks flag missing placeholders
- Includes translation memory and glossary management
- Offers actual-device interface testing
Against
- Listed paid options have starting prices
- Human translation is listed at $0.05 per month
The verdict
OneSky brings workflow management, automated checks, and human translation options into one localization service. Teams can start with the free plan and review the listed starting prices for paid services.
Who it suits
OneSky suits app and game teams managing translations across languages, formats, and platforms. Teams that want human translation or review can also use its translator communication and actual-device testing options.
Plans and prices
Free
no credit card required
Read 30 Sep 2026 · oneskyapp.com
AI-Driven Quality Estimation
AI-powered localization subscription · starting price
Read 30 Sep 2026 · oneskyapp.com
Multi-agent Translation
AI-powered localization subscription · starting price
Read 30 Sep 2026 · oneskyapp.com
Review
professional human linguistic service · no minimum order
Read 30 Sep 2026 · oneskyapp.com
Translation
professional human linguistic service · no minimum order
Read 30 Sep 2026 · oneskyapp.com
On the record
- Access controls
- Operations personnel access private projects only when required for support or project management under a role-based model.oneskyapp.com · read 30 Sep 2026
- App localization
- OneSky says its app localization service provides access to more than 1,000 professional translators in over 50 languages.oneskyapp.com · read 30 Sep 2026
- Customer reach
- OneSky says its localization solutions are trusted by more than 1,000 apps in over 70 countries.oneskyapp.com · read 30 Sep 2026
- Data protection
- OneSky uses SSL/TLS for private data exchange, PCI-compliant payment partners, and does not store credit-card credentials.oneskyapp.com · read 30 Sep 2026
- File formats
- Supported formats include Android XML, Apple strings, CSV, JSON, HTML, gettext, Microsoft Office formats, YAML, XLIFF, TMX, Unity TXT, and others.oneskyapp.com · read 30 Sep 2026
- Integrations
- OneSky lists integrations with iOS, Android, Apple App Store, Google Play Store, and APIs.oneskyapp.com · read 30 Sep 2026
- Language coverage
- The platform lets customers choose translations from over 70 languages.oneskyapp.com · read 30 Sep 2026
- On-device testing
- OneSky offers testing on actual devices to check that localized user interfaces look correct in every language.oneskyapp.com · read 30 Sep 2026
- Product
- OneSky provides complete localization solutions combining AI and human collaboration.oneskyapp.com · read 30 Sep 2026
- Security infrastructure
- OneSky says its servers run on Amazon Web Services with AWS compliance including PCI DSS and ISO 27001 compliance.oneskyapp.com · read 30 Sep 2026
- Support
- OneSky provides support through [email protected].oneskyapp.com · read 30 Sep 2026
- Technical validation
- Automated validation checks that translated text contains no missing placeholders.oneskyapp.com · read 30 Sep 2026
- Translation management
- Its translation management platform automates localization workflows for app and game development.oneskyapp.com · read 30 Sep 2026
- Translation memory
- Yesoneskyapp.com · read 20 Sep 2026
- Translator communication
- Users can communicate directly with OneSky translators through the platform during projects.oneskyapp.com · read 30 Sep 2026
The review
OneSky is a localization service for app and game teams that combines automated workflows, translation tools and human translation options. It is best for teams coordinating recurring localization across languages, platforms and file formats. Its validation and translator collaboration help cover both production workflow and technical details, but the starting prices are not a reliable estimate of a full project’s cost.
Overview
OneSky brings translation management, AI-assisted services and professional human translation together in one service. Teams can communicate with OneSky translators during projects, rather than treating translation as a handoff outside the workflow. That coordination is useful for ongoing app and game releases; it may be more machinery than a team needs for an isolated translation task.
Coverage spans more than 70 languages, with app localization drawing on a pool of more than 1,000 professional translators across over 50 languages. Translation memory and glossary management support repeat work, while context screenshots give translators visual context. The service also offers actual-device testing to check how localized interfaces appear. These capabilities make OneSky a more substantial choice than a basic text translation tool, though its breadth matters most when a team will use several parts of the workflow.
Key features
Automated localization workflows are built for app and game development. OneSky’s technical validation checks translated text for missing placeholders, helping teams catch a string problem that could disrupt how an app or game uses that text. Direct communication with translators, translation memory and glossaries support coordination and consistency across projects.
Supported formats include Android XML, Apple strings, CSV, JSON, HTML, gettext, Microsoft Office formats, YAML, XLIFF, TMX and Unity TXT, among others. Integrations include iOS, Android, Apple App Store, Google Play Store and APIs. This range suits teams with mixed development and store workflows; teams relying on a particular file format should verify it fits their process before committing. In-game delivery is by files.
OneSky says its servers run on Amazon Web Services with PCI DSS and ISO 27001 compliance. It uses SSL/TLS for private data exchange and PCI-compliant payment partners, and does not store credit-card credentials. Operations personnel access private projects only when needed for support or project management, under role-based controls. Support is available at [email protected].
Pricing
OneSky has a free plan at no cost, with no credit card required. It is the lowest-commitment way to begin, but the free plan’s usage caps are not defined here, so teams should confirm that it covers their project volume before relying on it.
Paid options are presented as starting prices billed monthly: AI-Driven Quality Estimation is $0.01 a month and includes AI-powered localization and quality estimation; Multi-agent Translation is $0.01 a month and includes AI-powered localization and multi-agent translation. Review starts at $0.04 a month with no minimum order, while Translation starts at $0.05 a month and covers professional human translation. These options distinguish automated quality or translation work from human translation, but their starting rates are not a predictable total for a project. The listed terms do not establish a full project price or a paid-plan quota.
Platforms
OneSky supports android, api, ios and web. Its integrations with mobile platforms, app stores and APIs, plus formats such as Android XML and Apple strings, make it relevant to teams shipping across mobile and web workflows.
Who it's for
OneSky is a strong fit for app and game teams that localize repeatedly and need translation management, technical checks and access to human translators in one workflow. Its translation memory, glossary, context screenshots and device testing are most useful when localization is an ongoing part of product development. Teams that only need occasional text translation, or cannot establish a project cost from starting rates, should compare simpler or more clearly scoped options.
Pros and cons
- Pros: Placeholder validation addresses a concrete technical risk in app and game strings.
- Pros: Translation memory, glossary management, context screenshots and direct translator communication support repeat projects.
- Pros: Broad language, format and platform coverage supports varied localization workflows.
- Cons: The free plan’s usage caps are not defined, making it difficult to judge whether it can sustain a project.
- Cons: Paid prices are starting rates, not a clear project total, so budgeting requires more than the entry figures.
- Cons: App localization and device testing may be unnecessary overhead for teams seeking only a one-off translation.
Alternatives
locize may suit teams that want clearly quantified free usage: its free plan includes 100K standard CDN downloads per month, 2,000 words, 2 languages, 5 namespaces and 1 user.
Tolgee is a useful comparison for teams that want a defined free allowance of 30,000 words and 3 seats, with automation and machine translation included.
LingoHub is an option for teams willing to pay for a Starter plan at €45 a month, with 100k linguistic credits (about 15k words) per month and unlimited seats.
Applanga is worth considering if a free trial is the priority, though its Free Trial is limited to 2 weeks, 1k MAU/API Calls, 1 team member, 1 project and 1 branch per project.
XTM Cloud is a paid alternative for teams prepared for a $16,500 yearly Team plan, which includes 2 million processed words per year and unlimited users.
Localizely offers a free plan with 250 hosted string keys, 1 project, unlimited users and unlimited languages, making it a comparison for teams whose work fits that hosted-string model.
Weblate is another alternative to compare if a paid cloud plan with 10,000 hosted strings and unlimited languages, projects and components fits your needs; Premium Cloud 10k costs €47 a month.
For broader comparisons, browse Translation Management Software, Game Localization Software or Translation Software.
Verdict
Choose OneSky if your app or game team needs recurring localization with workflow automation, placeholder checks and direct access to human translators. Its strongest case is bringing technical safeguards and translation coordination into one service. Look elsewhere if you need a clearly capped free plan or a dependable project total from the outset: OneSky’s free usage limits and the full cost behind its low starting rates are not clear.