# AcerSpark Reading vs Common Words

The clearest difference is update cadence: AcerSpark Reading at every 3 days against Common Words's every 4 months. AcerSpark Reading also leads on iOS requirement (8.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. AcerSpark Reading sells 5 one-off in-app purchases and Common Words sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

AcerSpark Reading ships an update every 3 days, Common Words every 4 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | AcerSpark Reading | Common Words |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 4 months |
| Size | 58 MB | 4 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Arch Square](https://appshunter.io/developer/432278777) | [Fiume Systems Pty Limited](https://appshunter.io/developer/1767090915) |

## What reviewers say

### AcerSpark Reading

[App page](https://appshunter.io/ios/app/acerspark-reading/id1308083203)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock of Picture Words | $1.99 | one-time |
| Unlock Dolch Sight Words | $1.99 | one-time |
| Unlock Frys Sight Words | $1.99 | one-time |
| Remove Ads | $1.99 | one-time |
| Value Combo Pack | $2.99 | one-time |


### Common Words

[App page](https://appshunter.io/ios/app/common-words-flashcards/id6758709745)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| US | $4.99 | per month |
| US | $39.99 | per year |


## Frequently asked questions

### Is AcerSpark Reading free?

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

### Is Common Words free?

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

### Do AcerSpark Reading or Common Words have ads?

Neither AcerSpark Reading nor Common Words shows ads.

### Which is updated more often, AcerSpark Reading or Common Words?

AcerSpark Reading ships an update every 3 days, and Common Words every 4 months. Most recently, AcerSpark Reading was updated on October 24, 2026 and Common Words on October 25, 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.*