# Reading Speed/Fluency Builder vs Poly

The clearest difference is in-app purchases: Poly at none against Reading Speed/Fluency Builder's 3. Poly also leads on update cadence (every 6 weeks vs every 4 months). Reading Speed/Fluency Builder's advantage is iOS requirement (12.2 vs 16.6). On price, ads and device support there is nothing between them.

Both are free to download. Reading Speed/Fluency Builder sells 3 one-off in-app purchases. Poly asks for nothing beyond the download.

Reading Speed/Fluency Builder ships an update every 4 months, Poly every 6 weeks. The most recent releases landed on October 6, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Reading Speed/Fluency Builder | Poly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (7 ratings)](https://appshunter.io/ios/app/reading-speedfluency-builder/id1080258925/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 39 MB | 78 MB |
| Requires iOS | **12.2** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Janine Toole](https://appshunter.io/developer/839832427) | [Database of Everything Inc.](https://appshunter.io/developer/1485620840) |

## What reviewers say

### Reading Speed/Fluency Builder

[App page](https://appshunter.io/ios/app/reading-speedfluency-builder/id1080258925)

This app helps children improve their reading speed and fluency through a game-like environment. It offers graduated practice, audio support, and motivational rewards to build confidence and comprehension skills for young learners.

**Highlights:** Graduated reading practice, Mastery-based progression, Multiple texts per level, Progress reporting, Audio support for fluent reading, Fun reward system, Incremental reading levels

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Up to 2 Users | $1.99 | one-time |
| Access All Levels | $2.99 | one-time |
| Add up to 10 Users | $2.99 | one-time |


### Poly

[App page](https://appshunter.io/ios/app/poly-record/id6758933540)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Reading Speed/Fluency Builder free?

Reading Speed/Fluency Builder is free to download, with in-app purchases available.

### Is Poly free?

Poly is free to download, with no in-app purchases.

### Do Reading Speed/Fluency Builder or Poly have ads?

Neither Reading Speed/Fluency Builder nor Poly shows ads.

### Which is updated more often, Reading Speed/Fluency Builder or Poly?

Reading Speed/Fluency Builder ships an update every 4 months, and Poly every 6 weeks. Most recently, Reading Speed/Fluency Builder was updated on October 6, 2026 and Poly on October 1, 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.*