GreenBulb vs The Lettervan
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
GreenBulb
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Join the adventure and help Greenbulb triumph over the Shape Machine! Dive into immersive game play where you'll navigate levels, solving puzzles and facing great challenges to thwart the machine's sinister plans. Harness Greenbulb's unique abilities to transform the dull and lifeless into something bursting with color and joy. Are you ready to save the world from monotony?
The Lettervan
This educational game helps children develop phonemic awareness and spelling skills through interactive word challenges. Players navigate engaging scenarios while learning to identify and manipulate sounds within words, fostering reading and pronunciation proficiency.
- Phoneme recognition practice
- Interactive spelling challenges
- Word-based animations
- Developed with speech pathologists
- Engaging game scenarios
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Listen to phonemes and practice reading and spelling! Navigate past thorny vines, hangry monsters, and dark clouds - with unique animations for each word spelled. The app, developed in collaboration with speech and language pathologists, is designed to assist children in recognizing that words are composed of phonemes. This ability to identify phonemes within words is closely associated with proficiency in pronunciation, reading and spelling.
Screenshots
Verdict
The clearest difference is in-app purchases: The Lettervan at none against GreenBulb's 1. GreenBulb's advantage is iOS requirement (12.0 vs 14.0). On price, update cadence, ads and device support 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. GreenBulb sells 1 one-off in-app purchase. The Lettervan asks for nothing beyond the download.
GreenBulb ships an update weekly, The Lettervan every 4 days. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.
| Parameter | GreenBulb | The Lettervan |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (4 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Weekly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 344 MB | 161 MB |
| Age rating | 4+ | 4+ |
| Developer | Daniel Green | Rickard Paulsson |
In-app purchases
GreenBulb
- Unlock All Levels$1.99
The Lettervan
No in-app purchases
Questions
Is GreenBulb free?
Is The Lettervan free?
Do GreenBulb or The Lettervan have ads?
Which is updated more often, GreenBulb or The Lettervan?
Other comparisons
