# Inflation Calculator vs NotiZen Pro

The clearest difference is price: Inflation Calculator at Free against NotiZen Pro's $10.49. NotiZen Pro's advantage is update cadence (monthly vs every 3 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Inflation Calculator is free to download; NotiZen Pro costs $10.49 up front. Inflation Calculator sells 4 in-app purchases, starting at $7.49 per year and NotiZen Pro sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Inflation Calculator ships an update every 3 months, NotiZen Pro monthly. The most recent releases landed on November 6, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Inflation Calculator | NotiZen Pro |
| --- | --- | --- |
| Price | **Free** | $10.49 |
| Rating | **[4.9 (3.6K ratings)](https://appshunter.io/ios/app/inflation-calculator/id926713392/reviews)** | — |
| Number of ratings | **3.6K** | — |
| Positive reviews | 85.1% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free | — |
| Size | 4 MB | 3 MB |
| Requires iOS | **16.0** | 17 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | +9 |
| Developer | [Dylan Burton](https://appshunter.io/developer/1668483591) | [贺 周](https://appshunter.io/developer/1815397078) |

## What reviewers say

### Inflation Calculator

[App page](https://appshunter.io/ios/app/inflation-calculator/id926713392)

Easily determine the present-day value of past prices using up-to-date inflation data. This tool supports 22 international currencies and provides yearly updates, making it simple to understand historical cost comparisons.

**Highlights:** Calculate dollar value from 1800-2025, Supports 22 international currencies, Yearly inflation data updates, Apple Watch companion app, Simple and intuitive interface

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (yearly) | $7.49 | per year |
| Premium (yearly) | $14.99 | per year |
| Premium (lifetime) | $14.99 | one-time |
| Premium (lifetime) | $29.99 | one-time |

**What reviewers like**

- 👍 Comprehensive and useful
- 👍 Easy to use
- 👍 Excellent value
- 👍 Provides helpful perspective
- 👍 Intuitive and straightforward

**What reviewers complain about**

- 🐛 Not updated for current year
- 🐛 Lacks updates for some currencies
- 🐛 Design could be improved
- 🐛 Lacks ability to directly input data

**Reported bugs**

- Not updated beyond 2024
- Caps out at 2020 for some countries

**Requested features**

- Update to 2025
- Add support for more currencies
- Improve design and usability
- Allow direct data input


### NotiZen Pro

[App page](https://appshunter.io/ios/app/notizen-pro/id6762554707)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NotiZen Pro Monthly | $2.99 | per month |
| NotiZen Pro Yearly | $19.99 | per year |
| NotiZen Pro Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Inflation Calculator free?

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

### Is NotiZen Pro free?

NotiZen Pro costs $10.49, and also offers in-app purchases.

### Do Inflation Calculator or NotiZen Pro have ads?

Neither Inflation Calculator nor NotiZen Pro shows ads.

### Which is updated more often, Inflation Calculator or NotiZen Pro?

Inflation Calculator ships an update every 3 months, and NotiZen Pro monthly. Most recently, Inflation Calculator was updated on November 6, 2026 and NotiZen Pro 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.*