# Retirement Estimator vs simpleFIRE

The clearest difference is rating: simpleFIRE at 5.0 against Retirement Estimator's 4.4. Retirement Estimator's advantage is monetization model (free vs free with in-app purchases) and ratings volume (10 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Retirement Estimator sells 4 one-off in-app purchases and simpleFIRE sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

simpleFIRE holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Retirement Estimator has 10 ratings behind it against 1, so its average is the more settled of the two.

Retirement Estimator ships an update every 2 months, simpleFIRE monthly. The most recent releases landed on September 17, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Retirement Estimator | simpleFIRE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (10 ratings)](https://appshunter.io/ios/app/retirement-estimator/id1448396456/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/simplefire-fire-calculator/id6504460384/reviews)** |
| Number of ratings | **10** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 10 MB | 3 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ITDT LLC](https://appshunter.io/developer/703558391) | [DAWID MICHAL MILCZAREK](https://appshunter.io/developer/1752376249) |

## What reviewers say

### Retirement Estimator

[App page](https://appshunter.io/ios/app/retirement-estimator/id1448396456)

Simulate and visualize personal financial scenarios for retirement planning. Experiment with income, investments, and expenses to understand future financial outcomes with privacy and precision. Generate visual charts and export data for detailed analysis.

**Highlights:** Simulate financial scenarios, Estimate income, investments, and expenses, Strategic fund allocation, Visualize future financial trends, Generate CSV reports, Local data storage, Password and biometric authentication

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Finance Entry | $1.99 | one-time |
| CSV Reports | $1.99 | one-time |
| Import/Export Data | $1.99 | one-time |
| Premium Package | $4.99 | one-time |


### simpleFIRE

[App page](https://appshunter.io/ios/app/simplefire-fire-calculator/id6504460384)

Effortlessly plan your financial future with intuitive sliders and advanced settings. This ad-free calculator keeps your data private and secure on your device, offering a one-time purchase for lifetime access to all features.

**Highlights:** Intuitive sliders for financial input, Compound interest calculation, Advanced settings (withdrawal rates, inflation), Ad-free experience, One-time payment for lifetime access, Privacy-focused, no data collection

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advanced Settings | $24.99 | one-time |


## Frequently asked questions

### Is Retirement Estimator free?

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

### Is simpleFIRE free?

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

### Which has better reviews, Retirement Estimator or simpleFIRE?

simpleFIRE is rated higher. Retirement Estimator averages 4.4 out of 5 from 10 ratings, while simpleFIRE averages 5.0 from 1 ratings.

### Do Retirement Estimator or simpleFIRE have ads?

Neither Retirement Estimator nor simpleFIRE shows ads.

### Which is updated more often, Retirement Estimator or simpleFIRE?

Retirement Estimator ships an update every 2 months, and simpleFIRE monthly. Most recently, Retirement Estimator was updated on September 17, 2026 and simpleFIRE on September 20, 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.*