# Partial Sums Addition vs Splat

Partial Sums Addition and Splat both sit at 5.0 stars, but that hides the real split: 75% of Splat's written reviews are positive against 50% of Partial Sums Addition's. Splat also leads on iOS requirement (11.0 vs 17.6). Partial Sums Addition's advantage is update cadence (every 9 months vs every 26 months) and price ($3.99 vs $4.99). On rating, ratings volume, ads and in-app purchases there is nothing between them.

Partial Sums Addition costs $3.99 and Splat $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Partial Sums Addition against 5.0 for Splat. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews are what separate them: 50% of Partial Sums Addition's written reviews are positive against 75% of Splat's.

Partial Sums Addition ships an update every 9 months, Splat every 26 months. The most recent releases landed on October 12, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Partial Sums Addition | Splat |
| --- | --- | --- |
| Price | **$3.99** | $4.99 |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/partial-sums-addition/id351022022/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/splat-o-nym/id889274902/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 50.0% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 26 months |
| Monetization | Paid | Paid |
| Size | 1 MB | 142 MB |
| Requires iOS | 17.6 | **11.0** |
| Devices | **iPhone, iPad** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Esa Helttula](https://appshunter.io/developer/339440196) | [Read Naturally, Inc.](https://appshunter.io/developer/465317542) |

## What reviewers say

### Partial Sums Addition

[App page](https://appshunter.io/ios/app/partial-sums-addition/id351022022)

This app teaches and reinforces the partial sums addition method. It offers an interactive interface with customizable settings, allowing users to solve random or custom addition problems with varying numbers of digits and addends. The app provides immediate feedback and aligns numbers automatically for focused learning.

**Highlights:** Partial sums addition method teaching, Interactive and customizable interface, Random and custom addition problems, Adjustable number of digits and addends, Automatic number alignment, Immediate feedback on answers, Color and animation speed customization

**Features:** macOS Compatibility

**In-app purchases:** none


### Splat

[App page](https://appshunter.io/ios/app/splat-o-nym/id889274902)

This vocabulary game helps students master synonyms and antonyms through four engaging activities. Progress through levels based on performance, with options for listening mode and detailed performance reports. It tracks progress for multiple students and saves sessions.

**Highlights:** Synonym Splat activity, Antonym Attack activity, Context Contest activity, Lightning Round activity, Progress tracking for multiple students, Listening mode for word pronunciation, Performance reports

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Partial Sums Addition free?

Partial Sums Addition costs $3.99, with no in-app purchases.

### Is Splat free?

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

### Which has better reviews, Partial Sums Addition or Splat?

Partial Sums Addition and Splat are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Partial Sums Addition or Splat have ads?

Neither Partial Sums Addition nor Splat shows ads.

### Which is updated more often, Partial Sums Addition or Splat?

Partial Sums Addition ships an update every 9 months, and Splat every 26 months. Most recently, Partial Sums Addition was updated on October 12, 2026 and Splat on October 24, 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.*