# Summation vs Piozila

The clearest difference is price: Summation at Free against Piozila's $2.99. Summation also leads on update cadence (every 3 weeks vs every 16 months) and iOS requirement (9.0 vs 15.0). Piozila's advantage is in-app purchases (none vs 2) and review sentiment (100% vs 70%). On ads and device support there is nothing between them.

Summation is free to download; Piozila costs $2.99 up front. Summation sells 2 one-off in-app purchases. Piozila asks for nothing beyond the download.

Summation ships an update every 3 weeks, Piozila every 16 months. The most recent releases landed on November 2, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | Summation | Piozila |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.2 (58 ratings)](https://appshunter.io/ios/app/summation/id1219879009/reviews)** | — |
| Number of ratings | **58** | — |
| Positive reviews | 70.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 16 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 110 MB | 678 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Lemon Jam Technology Co., Ltd.](https://appshunter.io/developer/884737211) | [Rhudy Erneli Dinaharison](https://appshunter.io/developer/1581324377) |

## What reviewers say

### Summation

[App page](https://appshunter.io/ios/app/summation/id1219879009)

Engage your brain with a minimalistic math puzzle game. Rearrange numbers to solve increasingly challenging levels. Explore new themes and enjoy endless gameplay.

**Highlights:** Minimalistic math puzzle gameplay, Rearrange numbers to solve puzzles, Endless levels for infinite play, Unlockable game themes, Brain workout challenges

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Hints | $0.99 | one-time |
| Remove Ads | $1.99 | one-time |

**What reviewers like**

- 🧠 Engaging puzzle mechanics with unique crossword-style addition gameplay
- 😌 Relaxing and calming experience without timers or move counters
- 🎨 Beautiful minimalist design with clean aesthetic
- 🎵 Pleasant soundtrack and sound design
- 📈 Good difficulty progression that challenges without frustrating

**What reviewers complain about**

- 📺 Excessive and intrusive full-screen video advertisements
- 💰 Ads persist even after paying for ad-free version
- 🔄 Ads interrupt gameplay and timer continues during Challenge Mode
- 🛑 Frequent app crashes and freezes, often related to ads
- 🔗 App Store opens unexpectedly multiple times during gameplay

**Reported bugs**

- Hint button freezes game and requires reinstall to fix
- Game crashes at specific levels (e.g., level 102)
- App crashes immediately upon opening with blue dot indicator
- Full-screen ads cannot be closed and trap users
- Game gets stuck in landscape mode after full-page ad

**Requested features**

- Dark mode for nighttime playing
- Multiplication puzzle variant
- Increased difficulty progression beyond level 100
- More varied puzzle structures and mechanics
- Ability to purchase larger quantities of hints at once


### Piozila

[App page](https://appshunter.io/ios/app/piozila/id1581324375)

Guide a hungry chameleon through colorful puzzles to find his way home. This charming game challenges players to plot the best path for the chameleon, ensuring he eats enough to survive his journey.

**Highlights:** Chubby chameleon character, Colorful graphics, Puzzle gameplay, Pathfinding challenges, Hunger mechanics

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases:** none


## Frequently asked questions

### Is Summation free?

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

### Is Piozila free?

Piozila costs $2.99, with no in-app purchases.

### Do Summation or Piozila have ads?

Neither Summation nor Piozila shows ads.

### Which is updated more often, Summation or Piozila?

Summation ships an update every 3 weeks, and Piozila every 16 months. Most recently, Summation was updated on November 2, 2026 and Piozila on November 11, 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.*