Zertfox vs Prepilingo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Zertfox
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Zertfox helps you prepare for the speaking part of the telc German A1, B1 and B2 exams by practicing out loud with AI conversation partners. Practice realistic exam tasks: Introductions and interview questions Topic conversations Discussions and role-play situations Full mock speaking sessions When you get stuck, use hints to find ideas and structure your answer. After practice, review feedback on grammar, pronunciation, task completion and expressiveness. Build the habits you need for exam day: answer clearly, react naturally, speak longer, and stay calm in German. Ideal for learners preparing for telc German exams, job seekers, newcomers in Germany, and anyone who needs more spoken German practice. Zertfox is an independent practice app and is not affiliated with telc gGmbH.
Prepilingo
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PASS YOUR GERMAN EXAM. FIRST TRY. Prepilingo is your shortcut to life in Germany and Austria. Targeted, AI-powered prep for ÖSD, ÖIF, Goethe-Institut, telc and DTZ - A1 to C1. Residence permit. Citizenship. A job. The exam stands between you and the life you're building here. Prepilingo gets you ready for it. - - - - - - - - - - - - - - - - - - - - PRACTICE ALL FOUR EXAM SKILLS Reading - exercises built to match real exam formats Listening - Austrian and German audio at every CEFR level Writing - instant AI feedback on grammar, vocabulary, and structure Speaking - record your voice, get scored on pronunciation and fluency - - - - - - - - - - - - - - - - - - - - EVERY EXAM. ONE APP. Austria - ÖSD - Oesterreichisches Sprachdiplom Deutsch (A1-C1) - ÖIF - Integrationspruefung (A2, B1) Germany - Goethe-Institut exams (A1-C1) - telc Deutsch - DTZ - Deutsch-Test fuer Zuwanderer Switch exams anytime. Keep your progress. More coming soon. - - - - - - - - - - - - - - - - - - - - BUILT TO GET YOU READY Instant AI writing grader - CEFR-aligned corrections and scoring A plan that adapts - targets your weakest skills first Live progress tracking - watch your CEFR level grow over time Real dialect practice - Viennese, Tyrolean, Bavarian, and more Real-life topics - housing, authorities, doctor visits, work Offline lessons - study anywhere, no wifi needed - - - - - - - - - - - - - - - - - - - - PLANS AND PRICING Free tier - A1 content and limited AI feedback. No credit card required. Premium (4.99 EUR/month) - Full access to all levels (A1-C1), unlimited AI feedback, all dialects, offline access, and personalized study paths. Premium Yearly (39 EUR/year) - All Premium features at 35% off. Lifetime (69 EUR one-time) - Everything, forever. Includes all future countries and exams. All paid plans include a 7-day money-back guarantee. - - - - - - - - - - - - - - - - - - - - LEGAL AND TRANSPARENCY Prepilingo is an independent educational application. We are NOT affiliated with, endorsed by, or officially approved by ÖSD, ÖIF, Goethe-Institut, telc GmbH, BAMF, or any government authority or official examination body. All exam names are referenced for descriptive educational purposes only, to indicate the type of preparation our content supports. Prepilingo does not administer official exams and does not issue official certifications or results. Our content is based on publicly available CEFR standards. We do not use official exam questions or copyrighted exam materials. We do not guarantee specific exam outcomes. Official sources: - ÖSD: https://www.osd.at - ÖIF: https://www.integrationsfonds.at - Goethe-Institut: https://www.goethe.de - Migration info: https://www.migration.gv.at ÖSD, ÖIF, Goethe-Institut, telc, and DTZ are trademarks of their respective owners. - - - - - - - - - - - - - - - - - - - - SUPPORT AND CONTACT Email: help@prepilingo.com Website: prepilingo.com - - - - - - - - - - - - - - - - - - - - Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Full Terms of Service: https://prepilingo.com/terms-of-service Privacy Policy: https://prepilingo.com/privacy-policy
Screenshots
Verdict
The clearest difference is iOS requirement: Prepilingo at 15.0 against Zertfox's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Zertfox sells 3 one-off in-app purchases and Prepilingo sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Zertfox ships an update every 2 weeks, Prepilingo fortnightly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.
| Parameter | Zertfox | Prepilingo |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 94 MB |
| Age rating | 4+ | 4+ |
| Developer | Sarp Demirel | MagicusPrime |
In-app purchases
Zertfox
- 1 week Premium Access$7.99
- 1 Month Premium Access$14.99
- 3 Month Premium Access$34.99
Prepilingo
- Premium Monthly3 Days trial$4.991 Month
- Premium Yearly14 Days trial$49.991 Year
- Lifetime Premium$59.99









