# ETF Calculator Pro Savingsplan vs DecisionTwin

The clearest difference is price: DecisionTwin at Free against ETF Calculator Pro Savingsplan's $0.99. DecisionTwin also leads on update cadence (daily vs every 2 days). ETF Calculator Pro Savingsplan's advantage is in-app purchases (none vs 2) and device support (3 vs 1). On ads there is nothing between them.

DecisionTwin is free to download; ETF Calculator Pro Savingsplan costs $0.99 up front. DecisionTwin sells 2 in-app purchases, starting at $9.99 per month. ETF Calculator Pro Savingsplan asks for nothing beyond the download.

ETF Calculator Pro Savingsplan ships an update every 2 days, DecisionTwin daily. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ETF Calculator Pro Savingsplan | DecisionTwin |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/etf-calculator-pro-savingsplan/id6443707329/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 90.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 days | **Daily** |
| Monetization | Paid | — |
| Size | 8 MB | 20 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Toni Dominik Hoffmann](https://appshunter.io/developer/1545228558) | [gaowen tan](https://appshunter.io/developer/1377179836) |

## What reviewers say

### ETF Calculator Pro Savingsplan

[App page](https://appshunter.io/ios/app/etf-calculator-pro-savingsplan/id6443707329)

This app helps you plan and calculate your ETF investments with various tools. It offers savings plan, withdrawal, and rebalancing calculators, along with ETF comparison and annual return calculations. Save your own ETFs or use sample ones based on historical data.

**Highlights:** Savings Plan Calculator, Withdrawal Plan Calculator, Rebalancing Calculator, ETF Comparison, Annual Return Calculation, Custom ETF Saving, Sample ETFs with Historical Data

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

**In-app purchases:** none


### DecisionTwin

[App page](https://appshunter.io/ios/app/decisiontwin/id6799638069)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $9.99 | per month |
| Pro Annual | $79.99 | per year |


## Frequently asked questions

### Is ETF Calculator Pro Savingsplan free?

ETF Calculator Pro Savingsplan costs $0.99, with no in-app purchases.

### Is DecisionTwin free?

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

### Do ETF Calculator Pro Savingsplan or DecisionTwin have ads?

Neither ETF Calculator Pro Savingsplan nor DecisionTwin shows ads.

### Which is updated more often, ETF Calculator Pro Savingsplan or DecisionTwin?

ETF Calculator Pro Savingsplan ships an update every 2 days, and DecisionTwin daily. Most recently, ETF Calculator Pro Savingsplan was updated on November 7, 2026 and DecisionTwin on October 31, 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.*