# Inference Ace vs Dolch.

The clearest difference is price: Inference Ace at Free against Dolch.'s $4.99. Inference Ace also leads on iOS requirement (12.2 vs 16.6). Dolch.'s advantage is in-app purchases (none vs 3). On ads and device support there is nothing between them.

Inference Ace is free to download; Dolch. costs $4.99 up front. Inference Ace sells 3 one-off in-app purchases. Dolch. asks for nothing beyond the download.

## The numbers

| Metric | Inference Ace | Dolch. |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[3.6 (21 ratings)](https://appshunter.io/ios/app/inference-ace/id866920724/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 88.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 22 MB | 5 MB |
| Requires iOS | **12.2** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Janine Toole](https://appshunter.io/developer/839832427) | [Sean Matthew Weinert](https://appshunter.io/developer/1687114894) |

## What reviewers say

### Inference Ace

[App page](https://appshunter.io/ios/app/inference-ace/id866920724)

This app helps children in grades 2-5 improve their reading comprehension by teaching inference skills step-by-step. It uses a game-like environment with over 450 examples and a reward center to keep kids engaged. Detailed reporting is available for up to 10 students.

**Highlights:** Step-by-step inference skill building, Game-like environment with reward center, Over 450 examples designed by teachers, Detailed reporting for multiple students, Incremental learning with unlocked levels, Guided learning for reduced frustration

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to 2 Players | $1.99 | one-time |
| Inference Ace: Buy All Levels | $2.99 | one-time |
| Upgrade to 10 Players | $2.99 | one-time |


### Dolch.

[App page](https://appshunter.io/ios/app/dolch/id6762555419)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Inference Ace free?

Inference Ace is free to download, with in-app purchases available.

### Is Dolch. free?

Dolch. costs $4.99, with no in-app purchases.

### Do Inference Ace or Dolch. have ads?

Neither Inference Ace nor Dolch. shows ads.

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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.*