How Much Does App Localization Cost in 2026?

App localization costs anywhere from a few dollars to tens of thousands, depending entirely on the route you take. For a typical indie app — call it 500 strings, about 2,500 words — human agencies quote four figures per batch of languages, platform subscriptions run four figures per year, and AI translation with review costs about what you'd spend on lunch. Here are the real numbers for each option in 2026.

Option 1: Translation agencies

The standard agency rate is $0.10–$0.18 per word, per language. Developers report real quotes of $350 per language for an initial pass, ~$700 for a single strings.xml, and $2,000+ from premium services. For our 2,500-word app:

• 1 language: $250–$450
• 10 languages: $2,500–$4,500
• Every update: repeat, pro-rated by changed words — plus coordination overhead each release.

Agencies make sense for high-stakes marketing copy and legal text. For UI strings in an indie app, the economics rarely close.

Option 2: TMS subscriptions (Lokalise, Crowdin, Phrase)

Enterprise translation-management platforms charge for seats and features, not outcomes: real-world plans run $450–$1,045+/month once you're past hobby tiers, and machine-translation credits are resold at a hefty markup on top. You're paying year-round for workflow tooling — branching, approval chains, translator management — designed for teams with a localization department. The full comparison is in the Lokalise alternatives guide.

Option 3: DIY machine translation

Free Google Translate scripts cost $0 and produce output developers describe, generously, as not shippable — no context, no glossary, broken placeholders. Pasting files into ChatGPT is better linguistically but operationally messy: manual chunking, invented keys, no validation, no memory between releases. The hidden cost is your time, every release. (Where AI quality actually stands is covered honestly in is AI translation good enough.)

Option 4: One-time credits

Localize Your App charges per string translated, once, with no subscription. One credit = one string (up to 500 characters) into one language:

• Starter pack ($9) — a whole 200-string app into all 39 App Store languages, once. The same job at agency rates is roughly $7,600–$13,700.
• Bigger apps stay cheap: even a 500-string app into every language fits the $25 pack.
• Updates cost only the diff. Translation memory re-fills every string it has seen before at no charge, so a release adding 20 strings costs 20 strings' worth per language.

Credits never expire, and placeholder locking plus a side-by-side review editor are included rather than sold as tiers.

The budget most indies actually need

1. Localize your store listing first (a few dollars) — it's the discovery lever.
2. Translate the app into 5–10 high-value languages (tens of dollars).
3. Spend the money you didn't give an agency on a native speaker's review pass for your top market, if the numbers justify it.

Whether that spend pays back — and how fast — is what the localization ROI guide covers.