# Trade vs Find Missing in Subtraction

The clearest difference is review sentiment: Trade at 100% against Find Missing in Subtraction's 0%. Trade also leads on rating (5.0 vs 1.0) and in-app purchases (none vs 1). Find Missing in Subtraction's advantage is price (Free vs $3.99) and iOS requirement (10.0 vs 17.6). On ratings volume, ads and device support there is nothing between them.

Find Missing in Subtraction is free to download; Trade costs $3.99 up front. Find Missing in Subtraction sells 1 one-off in-app purchase. Trade asks for nothing beyond the download.

Trade holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 100% of Trade's written reviews are positive against 0% of Find Missing in Subtraction's.

Trade ships an update every 8 months, Find Missing in Subtraction every 121 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Trade | Find Missing in Subtraction |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/trade-first-subtraction/id351022585/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/find-missing-in-subtraction/id1078068895/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 121 months |
| Monetization | Paid | **Free** |
| Size | 1 MB | 110 MB |
| Requires iOS | 17.6 | **10.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Esa Helttula](https://appshunter.io/developer/339440196) | [Blooming Kids Software LLC](https://appshunter.io/developer/501015942) |

## What reviewers say

### Trade

[App page](https://appshunter.io/ios/app/trade-first-subtraction/id351022585)

This educational app teaches and reinforces the trade-first subtraction method with interactive, step-by-step animations. Users can practice with customizable numbers and settings, receiving immediate feedback on their work. It's designed to be an intuitive tool for mastering subtraction strategies.

**Highlights:** Interactive trade-first subtraction method, Customizable number of digits (2-5), Random and custom problem generation, Step-by-step animated borrowing, Customizable interface colors and animations, Immediate feedback on answers

**Features:** macOS Compatibility

**In-app purchases:** none


### Find Missing in Subtraction

[App page](https://appshunter.io/ios/app/find-missing-in-subtraction/id1078068895)

This educational app helps children practice subtraction skills. It presents problems with missing numbers and offers interactive feedback. Users can customize settings like problem layout and number selection, and track progress through detailed reports.

**Highlights:** Interactive subtraction problems, Customizable problem layout (vertical/horizontal), Optional answer prompts, Random number generation, Congratulatory animations, Progress tracking and reports, Test mode

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Finding Missing Number in Subtraction | $3.99 | one-time |


## Frequently asked questions

### Is Trade free?

Trade costs $3.99, with no in-app purchases.

### Is Find Missing in Subtraction free?

Find Missing in Subtraction is free to download, with in-app purchases available.

### Which has better reviews, Trade or Find Missing in Subtraction?

Trade is rated higher. Trade averages 5.0 out of 5 from 1 ratings, while Find Missing in Subtraction averages 1.0 from 1 ratings.

### Do Trade or Find Missing in Subtraction have ads?

Neither Trade nor Find Missing in Subtraction shows ads.

### Which is updated more often, Trade or Find Missing in Subtraction?

Trade ships an update every 8 months, and Find Missing in Subtraction every 121 months. Most recently, Trade was updated on November 1, 2026 and Find Missing in Subtraction on November 2, 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.*