I Say vs Evolution
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
I Say
This app helps young children develop reading confidence by teaching them to recognize sight words. It uses a playful, interactive approach where children listen to a word and tap the matching option, with gentle guidance for incorrect answers.
- Listen and match sight words
- Learning mode for new words
- Practice mode for review
- Animated word recognition
- Adjustable mastery goals
- Progress tracking for parents
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Master 500 high-frequency words through play! I Say helps preschoolers and early readers build the instant recognition skills they need to read with speed and confidence. By focusing on the 500 words that make up 75% of children's literature, we turn "learning to read" into a rewarding game. HOW IT WORKS Using the digital "Word Wall" method, children internalize words through active scanning: • Mini-lessons: Rounds of just 3 words prevent overwhelm. • Scan and Find: Children match audio to text, building visual discrimination. • Success Crowns: Reward accuracy! Words found on the first try earn a crown. • Gentle Guidance: Missed a word? The app provides instant sound-and-spelling support. TRACK PROGRESS WITH EASE No more guessing. After every set, parents get a summary of: • Mastery Tracking: Progress across Dolch, Fry, and Grade-Level lists. • Smart Review: The app flags specific words for "Extra Practice," so you know where to focus. WHY FAMILIES LOVE IT • Interactive Loop: Hear it, find it, tap it. • Calm Gameplay: Engaging without being over-stimulating. • Encourages Accuracy: Promotes careful listening over fast clicking. • Safety First: 100% ad-free. The simple, effective way for kids to recognize common words instantly.
Evolution
Explore a 2D world where creatures evolve through natural selection. This simulator allows you to experiment with settings and observe how genomes influence adaptation. Witness the fascinating process of evolution in action.
- 2D natural selection simulation
- Neural network-powered creatures
- Genome-defined creature behavior
- Experiment with evolutionary settings
- Observe creature adaptation
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Evolution is a natural selection simulator in a 2D world. Each creature is powered by a neural network defined by its genome. Experiment with settings and watch as creatures evolve to adapt. _______ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula
Screenshots
Verdict
The clearest difference is review sentiment: Evolution at 100% against I Say's 50%. Evolution also leads on update cadence (every 8 days vs every 4 months) and price ($1.99 vs $4.99). I Say's advantage is chart position (#179 vs unranked) and iOS requirement (16.0 vs 18.0). On ads, in-app purchases, monetization model 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
I Say costs $4.99 and Evolution $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
I Say ships an update every 4 months, Evolution every 8 days. The most recent releases landed on August 8, 2026 and September 16, 2026 respectively.
| Parameter | I Say | Evolution |
|---|---|---|
| Price | $4.99 | $1.99 — better |
| Rating | 4.0 (9 ratings) — better | — |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 9 — better | — |
| Update frequency | Every 4 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #179 — better | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 37 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Preeti Kancharla | Seungwoo Choe |
Customer experience
I Say
Evolution
In-app purchases
I Say
No in-app purchases
Evolution
No in-app purchases
Questions
Is I Say free?
Is Evolution free?
Do I Say or Evolution have ads?
Which is updated more often, I Say or Evolution?
Other comparisons
