# Personal Formulator vs FlatPrice

The clearest difference is update cadence: FlatPrice at monthly against Personal Formulator's every 3 months. FlatPrice also leads on iOS requirement (15.1 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Personal Formulator sells 1 one-off in-app purchase and FlatPrice sells 1 in-app purchase, starting at $17.99 per month. Whichever you choose, the download price is not the number that matters.

Personal Formulator ships an update every 3 months, FlatPrice monthly. The most recent releases landed on October 6, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Personal Formulator | FlatPrice |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/personal-formulator/id296173495/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 19 MB | 43 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Historycentral.com](https://appshunter.io/developer/1744330560) | [Bruno Maestrini](https://appshunter.io/developer/1567634310) |

## What reviewers say

### Personal Formulator

[App page](https://appshunter.io/ios/app/personal-formulator/id296173495)

This app offers a comprehensive suite of nearly 30 personal calculation tools, including financial planning, loan amortization, and unit conversions. It helps users understand discounts, manage car payments, and track savings goals. Users can also save preferred formulas and create custom lists for easy access.

**Highlights:** Nearly 30 personal calculation formulas, Financial goal tracking, Loan and mortgage calculations, Multiple discount analysis, Unit and cooking conversions, Save and organize preferred formulas, Formula charting options

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | one-time |


### FlatPrice

[App page](https://appshunter.io/ios/app/flatprice/id6758944682)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FlatPrice | $17.99 | per month |


## Frequently asked questions

### Is Personal Formulator free?

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

### Is FlatPrice free?

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

### Do Personal Formulator or FlatPrice have ads?

Neither Personal Formulator nor FlatPrice shows ads.

### Which is updated more often, Personal Formulator or FlatPrice?

Personal Formulator ships an update every 3 months, and FlatPrice monthly. Most recently, Personal Formulator was updated on October 6, 2026 and FlatPrice on October 17, 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.*