# I Say vs Evolution

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.

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.

## The numbers

| Metric | I Say | Evolution |
| --- | --- | --- |
| Price | $4.99 | **$1.99** |
| Rating | **[4.0 (9 ratings)](https://appshunter.io/ios/app/i-say-learn-500-sight-words/id1358752168/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 8 days** |
| Monetization | Paid | Paid |
| Best chart rank | **#179** | — |
| Size | 37 MB | 10 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Preeti Kancharla](https://appshunter.io/developer/566021820) | [Seungwoo Choe](https://appshunter.io/developer/1660506601) |

## What reviewers say

### I Say

[App page](https://appshunter.io/ios/app/i-say-learn-500-sight-words/id1358752168)

**Currently charting:** #179 Top Paid · Education (US App Store)

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.

**Highlights:** Listen and match sight words, Learning mode for new words, Practice mode for review, Animated word recognition, Adjustable mastery goals, Progress tracking for parents

**In-app purchases:** none


### Evolution

[App page](https://appshunter.io/ios/app/evolution-simulator/id6742989088)

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.

**Highlights:** 2D natural selection simulation, Neural network-powered creatures, Genome-defined creature behavior, Experiment with evolutionary settings, Observe creature adaptation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is I Say free?

I Say costs $4.99, with no in-app purchases.

### Is Evolution free?

Evolution costs $1.99, with no in-app purchases.

### Do I Say or Evolution have ads?

Neither I Say nor Evolution shows ads.

### Which is updated more often, I Say or Evolution?

I Say ships an update every 4 months, and Evolution every 8 days. Most recently, I Say was updated on August 8, 2026 and Evolution on September 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*