Rainbow vs BUILDeutsch
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Rainbow
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Calmer mornings. Less reminding. Happier routines. Parentβs phone. Parent controlled. No child interaction. Rainbow helps children confidently follow daily routines using visual schedules, timers, and motivating rewards. Instead of constantly reminding your child what to do next, Rainbow helps them see each step, understand how much time is left, and stay motivated from start to finish. Whether it's getting ready in the morning, bedtime, brushing teeth, getting dressed, or any other daily routine, Rainbow helps children build confidence and independence one step at a time. Features β’ Create personalized routines for any part of the day β’ Visual timers that make time easy to understand β’ Step-by-step visual routines children can follow independently β’ Rewards and playful characters that keep kids motivated β’ Customize tasks, timers, colors, and characters β’ Guided by child psychologists and behavior specialists Rainbow is designed to help children develop healthy daily habits while reducing stress for the whole family. Because every completed routine is one less reminder, one more step toward independence, and one more calm family moment you can enjoy together. Everything we do is rooted in trust and transparency. Learn more about our Terms of Use at https://rainbow.education/terms
BUILDeutsch
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BUILDeutsch makes German click. Most apps make you memorize German. BUILDeutsch shows you how it actually works β every word colored by its role in the sentence. It's intuitive one-of-a-kind color-coding engine helps you finally understand sentence structure. Der is cyan, die is magenta, das is lime. Verbs glow yellow. Cases have their own colors. You don't memorize tables. You build sentences and quickly the patterns become instinct. THE BUILDER β Enter any sentence to see how it's built, then reshape it. Tap a word to change tense, case, or person, and watch the rest of the sentence rearrange itself the way German demands. DIALOGUE β Real conversations from everyday life: a family morning, the bakery, a doctor's visit. Two native voices, every word colored by its role, the English right underneath. Listen, read along, and say the lines back. DEUTSCHLENS β Point your camera at your kitchen, your street, your desk β and see the world in German. Every word arrives with its gender, its plural, and a natural sentence for practice. Saved photos keep their words offline, forever. SATZPUZZLE β Rebuild real German sentences piece by piece until the word order stops feeling foreign and starts feeling obvious. DER WEG β A complete A1 β C1 course, 84 lessons, one path. The color code is introduced one idea at a time: verbs first, then genders, then time, then the case system β exactly when the grammar itself does. Listening, speaking and reading woven in. WORKING IN HEALTHCARE? β There's a Medical German section too β 1,800+ clinical terms and common sentence patterns from Anamnese to Arztbrief. It's not a formal FSP prep course, but if the FachsprachenprΓΌfung is on your horizon, it's a great companion for building the vocabulary along the way. AND THE REST β’ 7,000+ words with genders, plurals and example sentences β searchable offline β’ Flashcards with spaced repetition, organized by real-life topics β’ Build your own decks from any word you meet β even from your photos β’ A cheat sheet for the moments you just need the answer β’ A night theme that's easy on the eyes FREE: the first two course units, daily photo credits, and the full color-coded experience. PRO: the complete A1βC1 course, unlimited DeutschLens photos, unlimited Builder sentences. $7.99/month or $49.99/year, each with a 7-day free trial. Subscriptions auto-renew unless canceled at least 24 hours before the period ends; manage in your App Store account settings. Terms: https://buildeutsch.com/terms.html Privacy: https://buildeutsch.com/privacy.html
Screenshots
Verdict
The clearest difference is update cadence: BUILDeutsch at every 4 days against Rainbow's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Rainbow sells 6 in-app purchases, starting at $2.99 per 7 days and BUILDeutsch sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.
Rainbow ships an update every 2 weeks, BUILDeutsch every 4 days. The most recent releases landed on November 13, 2026 and October 31, 2026 respectively.
| Parameter | Rainbow | BUILDeutsch |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks | Every 4 days β better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 16.4 | 16.4 |
| Further details β not scored | ||
| Size | 108 MB | 76 MB |
| Age rating | 4+ | 9+ |
| Developer | Taras Rudakevych | Mango Medicine LLC |
In-app purchases
Rainbow
- 1 Week$2.997 Days
- 1 Week Trial7 Days trial$2.997 Days
- 1 Month$5.991 Month
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- 1 Month Trail7 Days trial$5.991 Month
- 1 Year Trial7 Days trial$29.991 Year
- 1 Year$29.991 Year
BUILDeutsch
- BUILDeutsch Pro7 Days trial$7.991 Month
- BUILDeutsch Pro7 Days trial$49.991 Year








