# Digital Donor App vs TowerCal

The clearest difference is rating: TowerCal at 5.0 against Digital Donor App's 2.0. TowerCal also leads on update cadence (every 10 days vs every 7 months). Digital Donor App's advantage is in-app purchases (none vs 2) and ratings volume (26 vs 2). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. TowerCal sells 2 in-app purchases, starting at $1.99 per month. Digital Donor App asks for nothing beyond the download.

TowerCal holds the better App Store score, 5.0 against 2.0. That said, the two scores are not equally well evidenced: Digital Donor App has 26 ratings behind it against 2, so its average is the more settled of the two.

Digital Donor App ships an update every 7 months, TowerCal every 10 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | Digital Donor App | TowerCal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (26 ratings)](https://appshunter.io/ios/app/digital-donor-app/id6615088645/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/towercal-calorie-tracker/id6768521767/reviews)** |
| Number of ratings | **26** | 2 |
| Positive reviews | 9.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 10 days** |
| Monetization | **Free** | Freemium |
| Size | 35 MB | 79 MB |
| Requires iOS | **15.1** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [GULF COAST REGIONAL BLOOD CENTER](https://appshunter.io/developer/1342387020) | [Bizmodio LLC](https://appshunter.io/developer/1896581399) |

## What reviewers say

### Digital Donor App

[App page](https://appshunter.io/ios/app/digital-donor-app/id6615088645)

Easily schedule blood donations, track your impact, and access health test results. Discover donor rewards and educational resources to understand how your contributions save lives. Stay informed about local blood needs and community events.

**Highlights:** Schedule donation appointments, Track donation history and impact, Access post-donation test results, Discover donor rewards and benefits, Educational resources on blood donation, Receive updates on blood supply needs

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

**In-app purchases:** none


### TowerCal

[App page](https://appshunter.io/ios/app/towercal-calorie-tracker/id6768521767)

Effortlessly track your daily calorie intake and exercise with this intuitive app. Visualize your progress with a unique calorie tower and monitor key nutrients at a glance. Log food and activities quickly through typing or voice input.

**Highlights:** Visual calorie tower visualization, Quick food and exercise logging, Voice and text entry options, Nutrient tracking (protein, fat, sugar, etc.), Weight history and trends, Custom food and favorite entries

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Caldex Monthly | $1.99 | per month |
| Caldex Annual | $19.99 | per year |


## Frequently asked questions

### Is Digital Donor App free?

Digital Donor App is free to download, with no in-app purchases.

### Is TowerCal free?

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

### Which has better reviews, Digital Donor App or TowerCal?

TowerCal is rated higher. Digital Donor App averages 2.0 out of 5 from 26 ratings, while TowerCal averages 5.0 from 2 ratings.

### Do Digital Donor App or TowerCal have ads?

Neither Digital Donor App nor TowerCal shows ads.

### Which is updated more often, Digital Donor App or TowerCal?

Digital Donor App ships an update every 7 months, and TowerCal every 10 days. Most recently, Digital Donor App was updated on October 25, 2026 and TowerCal 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.*