# Image resizer, converter iSize vs Day by Data

The clearest difference is review sentiment: Day by Data at 100% against Image resizer, converter iSize's 75%. Day by Data also leads on rating (4.9 vs 4.6) and update cadence (weekly vs every 3 weeks). Image resizer, converter iSize's advantage is ratings volume (134 vs 16) and iOS requirement (15.0 vs 17.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Image resizer, converter iSize sells 5 in-app purchases, starting at $4.99 per 7 days and Day by Data sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Day by Data holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: Image resizer, converter iSize has 134 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 75% of Image resizer, converter iSize's written reviews are positive against 100% of Day by Data's.

Image resizer, converter iSize ships an update every 3 weeks, Day by Data weekly. The most recent releases landed on September 22, 2026 and June 8, 2026 respectively.

## The numbers

| Metric | Image resizer, converter iSize | Day by Data |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (134 ratings)](https://appshunter.io/ios/app/image-resizer-converter-isize/id1597353368/reviews) | **[4.9 (16 ratings)](https://appshunter.io/ios/app/day-by-data/id6737629704/reviews)** |
| Number of ratings | **134** | 16 |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 198 MB | 41 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [VeprIT](https://appshunter.io/developer/425404100) | [n-gen](https://appshunter.io/developer/1777279998) |

## What reviewers say

### Image resizer, converter iSize

[App page](https://appshunter.io/ios/app/image-resizer-converter-isize/id1597353368)

This app allows you to precisely resize, crop, and transform photos. It supports batch processing, metadata editing, and exporting in various formats and sizes, making it ideal for social media, printing, and graphic design.

**Highlights:** Advanced resizing modes, Batch processing, Export in multiple sizes, Metadata editing, Transparent image support, Live previews, Customizable presets

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iSize weekly | $4.99 | per 7 days |
| iSize weekly | $4.99 | per 7 days |
| iSize Yearly | $19.99 | per year |
| iSize Yearly | $19.99 | per year |
| iSize Forever | $49.99 | one-time |


### Day by Data

[App page](https://appshunter.io/ios/app/day-by-data/id6737629704)

Transform your personal data into unique visual art. Connect health and music streaming services to create shareable art pieces that tell your story. Explore your achievements and relive your favorite moments through beautiful visualizations.

**Highlights:** Personal data visualization, Health data integration, Spotify data integration, Customizable art pieces, Achievement tracking, Data calendar

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Day by Data Pro | $1.99 | per month |
| Day by Data Lifetime | $14.99 | one-time |


## Frequently asked questions

### Is Image resizer, converter iSize free?

Image resizer, converter iSize is free to download, with in-app purchases available.

### Is Day by Data free?

Day by Data is free to download, with in-app purchases available.

### Which has better reviews, Image resizer, converter iSize or Day by Data?

Day by Data is rated higher. Image resizer, converter iSize averages 4.6 out of 5 from 134 ratings, while Day by Data averages 4.9 from 16 ratings.

### Do Image resizer, converter iSize or Day by Data have ads?

Neither Image resizer, converter iSize nor Day by Data shows ads.

### Which is updated more often, Image resizer, converter iSize or Day by Data?

Image resizer, converter iSize ships an update every 3 weeks, and Day by Data weekly. Most recently, Image resizer, converter iSize was updated on September 22, 2026 and Day by Data on June 8, 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.*