# Calculator· vs Sena

The clearest difference is review sentiment: Calculator· at 84% against Sena's 0%. Calculator· also leads on rating (4.9 vs 2.0) and ratings volume (34K vs 2). Sena's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price there is nothing between them.

Both are free to download. Calculator· sells 3 in-app purchases, starting at $0.99 per month. Sena asks for nothing beyond the download.

Calculator· holds the better App Store score, 4.9 against 2.0. That said, the two scores are not equally well evidenced: Calculator· has 34K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 84% of Calculator·'s written reviews are positive against 0% of Sena's.

Calculator· ships an update every 2 months, Sena every 7 months. The most recent releases landed on September 24, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Calculator· | Sena |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (34K ratings)](https://appshunter.io/ios/app/calculator/id554836784/reviews)** | [2.0 (2 ratings)](https://appshunter.io/ios/app/sena/id1365547269/reviews) |
| Number of ratings | **34K** | 2 |
| Positive reviews | **84.4% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 40 MB | 10 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tim O's Studios, LLC](https://appshunter.io/developer/412839685) | [Stichting ter Exploitatie van Naburige rechten (SENA)](https://appshunter.io/developer/1365547268) |

## What reviewers say

### Calculator·

[App page](https://appshunter.io/ios/app/calculator/id554836784)

This app offers a straightforward calculation experience, focusing on essential functions without unnecessary complexity. It includes basic arithmetic, percentage calculations, and advanced functions like square root. Users can customize the appearance with multiple color schemes and utilize features like result copying and split-screen multitasking on iPad.

**Highlights:** Basic arithmetic operations, Percentage calculations, Multiple color schemes, Copy results, Square, square root, inverse functions, iPad Split View support, Apple Watch support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade App | $0.99 | per month |
| Upgrade App | $4.99 | per year |
| Upgrade App | $1.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Quick and responsive
- 💡 Percentage function works well
- 👍 Large, clear buttons
- 👍 Straightforward, no-frills design

**What reviewers complain about**

- 🔋 Frequent ads can be distracting
- 🐛 Occasional crashes or freezes
- 🔒 Lack of customization options
- 💡 No backspace/undo function
- 💡 Missing advanced features like memory

**Reported bugs**

- Crashes when performing long calculations
- Freezes when opening the app
- Incorrect results for some complex calculations

**Requested features**

- Add a backspace/undo button
- Implement a history/memory feature
- Provide more customization options
- Reduce frequency of ads


### Sena

[App page](https://appshunter.io/ios/app/sena/id1365547269)

This app allows affiliated musicians and producers to view payments, balances, and register their repertoire. It offers quick access to financial information and repertoire management, helping users maximize their music earnings. The latest update includes bug fixes for improved performance.

**Highlights:** View payments and balances, Register repertoire, Notifications for unfinished repertoire, Login with Touch ID/Face ID, Filter earnings by track, channel, year, and country, Switch between musician and producer accounts, Save repertoire drafts

**In-app purchases:** none


## Frequently asked questions

### Is Calculator· free?

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

### Is Sena free?

Sena is free to download, with no in-app purchases.

### Which has better reviews, Calculator· or Sena?

Calculator· is rated higher. Calculator· averages 4.9 out of 5 from 34K ratings, while Sena averages 2.0 from 2 ratings.

### Do Calculator· or Sena have ads?

Calculator· shows ads; Sena does not.

### Which is updated more often, Calculator· or Sena?

Calculator· ships an update every 2 months, and Sena every 7 months. Most recently, Calculator· was updated on September 24, 2026 and Sena on June 4, 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.*