# Cimo Spelling (Sight Words) vs Big Math

The clearest difference is update cadence: Cimo Spelling (Sight Words) at every 2 months against Big Math's every 11 months. Cimo Spelling (Sight Words) also leads on device support (3 vs 1) and iOS requirement (9.0 vs 15.6). On price, ads and in-app purchases there is nothing between them.

Cimo Spelling (Sight Words) costs $1.99 and Big Math $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Cimo Spelling (Sight Words) ships an update every 2 months, Big Math every 11 months. The most recent releases landed on October 18, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Cimo Spelling (Sight Words) | Big Math |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | **[3.3 (3 ratings)](https://appshunter.io/ios/app/cimo-spelling-sight-words/id446694946/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 11 months |
| Monetization | Paid | — |
| Size | 142 MB | 18 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jariya Tuantranont](https://appshunter.io/developer/404509814) | [Eaglet LLC](https://appshunter.io/developer/449193510) |

## What reviewers say

### Cimo Spelling (Sight Words)

[App page](https://appshunter.io/ios/app/cimo-spelling-sight-words/id446694946)

This educational game helps kindergarten through 3rd graders build a strong foundation in reading and spelling. Children learn high-frequency and sight words through an engaging penguin-themed adventure. Parents can track progress with detailed reports and customize learning levels.

**Highlights:** Teaches Dolch Sight Word list, Interactive penguin-themed gameplay, Progress reports for parents, Customizable question settings, Grade-appropriate learning levels, Professional voice recordings

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Big Math

[App page](https://appshunter.io/ios/app/big-math/id591862472)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Cimo Spelling (Sight Words) free?

Cimo Spelling (Sight Words) costs $1.99, with no in-app purchases.

### Is Big Math free?

Big Math costs $1.99, with no in-app purchases.

### Do Cimo Spelling (Sight Words) or Big Math have ads?

Neither Cimo Spelling (Sight Words) nor Big Math shows ads.

### Which is updated more often, Cimo Spelling (Sight Words) or Big Math?

Cimo Spelling (Sight Words) ships an update every 2 months, and Big Math every 11 months. Most recently, Cimo Spelling (Sight Words) was updated on October 18, 2026 and Big Math on October 19, 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.*