# FastCalc vs Perenne Note. Digital Notebook

The clearest difference is price: Perenne Note. Digital Notebook at Free against FastCalc's $1.99. Perenne Note. Digital Notebook also leads on update cadence (weekly vs every 5 months) and iOS requirement (17.6 vs 26.0). FastCalc's advantage is rating (4.8 vs 3.8) and review sentiment (80% vs 50%). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Perenne Note. Digital Notebook is free to download; FastCalc costs $1.99 up front. FastCalc sells 4 one-off in-app purchases and Perenne Note. Digital Notebook sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

FastCalc holds the better App Store score, 4.8 against 3.8. Both are backed by a comparable volume of ratings — 4 and 5 respectively. Written reviews point the same way: 80% of FastCalc's written reviews are positive against 50% of Perenne Note. Digital Notebook's.

FastCalc ships an update every 5 months, Perenne Note. Digital Notebook weekly. The most recent releases landed on October 7, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | FastCalc | Perenne Note. Digital Notebook |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.8 (4 ratings)](https://appshunter.io/ios/app/fastcalc/id350419994/reviews)** | [3.8 (5 ratings)](https://appshunter.io/ios/app/perenne-note-digital-notebook/id6758993077/reviews) |
| Number of ratings | 4 | **5** |
| Positive reviews | **80.0% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 8 MB | 48 MB |
| Requires iOS | 26.0 | **17.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Andre Ponzo](https://appshunter.io/developer/350419997) | [Nicholas Compagnoni](https://appshunter.io/developer/1876200579) |

## What reviewers say

### FastCalc

[App page](https://appshunter.io/ios/app/fastcalc/id350419994)

This calculator app offers a streamlined experience with large, easy-to-use keys and an innovative gesture-based interface. It displays your ongoing expression and results in real-time, eliminating the need for an equals button. Advanced features include percentage calculations and customizable constants.

**Highlights:** Large, practical keys, Permanent expression display, Automatic real-time results, Gesture-based input, Customizable constants, Advanced percentage mode

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Red Rivella | $1.99 | one-time |
| Homemade hot chocolate | $6.99 | one-time |
| Bircher muesli | $12.99 | one-time |
| Moitié-moitié fondue | $34.99 | one-time |


### Perenne Note. Digital Notebook

[App page](https://appshunter.io/ios/app/perenne-note-digital-notebook/id6758993077)

A minimalist digital notebook designed for iPad and iPhone, offering a realistic writing and sketching experience with Apple Pencil. Organize notes, sketches, and lists with customizable notebooks and real-time syncing.

**Highlights:** Realistic pen and pencil tools, Customizable notebooks and paper styles, iPhone companion app with iCloud sync, Quick notes with rich text and checklists, Reminders and calendar integration, Desk feature for floating elements, PDF and PNG export options

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Annual | $22.99 | per year |
| Single Notebook | $3.99 | one-time |
| Notebook Bundle | $8.99 | one-time |


## Frequently asked questions

### Is FastCalc free?

FastCalc costs $1.99, and also offers in-app purchases.

### Is Perenne Note. Digital Notebook free?

Perenne Note. Digital Notebook is free to download, with in-app purchases available.

### Which has better reviews, FastCalc or Perenne Note. Digital Notebook?

FastCalc is rated higher. FastCalc averages 4.8 out of 5 from 4 ratings, while Perenne Note. Digital Notebook averages 3.8 from 5 ratings.

### Do FastCalc or Perenne Note. Digital Notebook have ads?

Neither FastCalc nor Perenne Note. Digital Notebook shows ads.

### Which is updated more often, FastCalc or Perenne Note. Digital Notebook?

FastCalc ships an update every 5 months, and Perenne Note. Digital Notebook weekly. Most recently, FastCalc was updated on October 7, 2026 and Perenne Note. Digital Notebook on October 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.*