Español21 vs Geng Thai
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Español21
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Master Spanish in 21 days with Spanish21! Learn Spanish through a structured 21-day course designed for real-world conversations. Practice with speech recognition, track your progress, get advice from a teacher, and learn while driving your car. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Geng Thai
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Master Thai vocabulary with Geng Thai (เก่ง) - the smart way to learn Thai words through interactive practice and intelligent progress tracking. PRACTICE THAT ADAPTS TO YOU Geng Thai uses an advanced adaptive learning system that tracks your mastery of each word. Words you're learning appear more frequently, while mastered words gradually fade from your practice sessions. This intelligent approach ensures you're always challenged at the right level. INTERACTIVE LEARNING • Multiple-choice practice sessions with Thai words and definitions • Speech recognition exercises to perfect your pronunciation • Text-to-speech audio to hear correct Thai pronunciation • Word introduction with definitions and example sentences • Smart frequency weighting keeps you practicing the right words TRACK YOUR PROGRESS Watch your vocabulary grow with detailed progress statistics. See how many words you've learned, your current skill level, and track your improvement over time. COMPETE ON LEADERBOARDS Stay motivated by competing with other learners on daily, weekly, monthly, and global leaderboards. See how you rank and challenge yourself to climb higher. SECURE & PRIVATE Sign in with Apple for secure, private authentication. Your progress is saved securely and synced across your devices. REMOVE ADS Enjoy an ad-free learning experience with a one-time purchase to remove all advertisements. Whether you're planning a trip to Thailand, learning for business, or simply love languages, Geng Thai makes learning Thai vocabulary engaging, effective, and fun. Start your Thai learning journey today!
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Verdict
The clearest difference is in-app purchases: Geng Thai at none against Español21's 1. Español21's advantage is ads (none vs shown). On price, device support and iOS requirement 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. Español21 sells 1 one-off in-app purchase. Geng Thai asks for nothing beyond the download.
| Parameter | Español21 | Geng Thai |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days | — |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 — better | 18.0 |
| Further details — not scored | ||
| Size | 462 MB | 6 MB |
| Age rating | 4+ | 12+ |
| Developer | OLE PETTER HAUGEN | James Cooper-Stanbury |
In-app purchases
Español21
- Spanish21 Pro$19.99
Geng Thai
No in-app purchases









