# GraphCalcPro2Go vs Surface Time

The clearest difference is update cadence: Surface Time at weekly against GraphCalcPro2Go's every 3 months. Surface Time also leads on rating (5.0 vs 4.6) and monetization model (free vs free with in-app purchases). GraphCalcPro2Go's advantage is ratings volume (40 vs 3) and device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. GraphCalcPro2Go sells 1 one-off in-app purchase and Surface Time sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Surface Time holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: GraphCalcPro2Go has 40 ratings behind it against 3, so its average is the more settled of the two.

GraphCalcPro2Go ships an update every 3 months, Surface Time weekly. The most recent releases landed on September 29, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | GraphCalcPro2Go | Surface Time |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (40 ratings)](https://appshunter.io/ios/app/graphcalcpro2go/id1091870099/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/surface-time/id6747015704/reviews)** |
| Number of ratings | **40** | 3 |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 9 MB | 17 MB |
| Requires iOS | 18.6 | **17.6** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Starware Software LLC](https://appshunter.io/developer/988250389) | [Neel Makhecha](https://appshunter.io/developer/1353167736) |

## What reviewers say

### GraphCalcPro2Go

[App page](https://appshunter.io/ios/app/graphcalcpro2go/id1091870099)

This advanced scientific calculator offers ultra-high precision and a wide range of functions, replicating expensive handheld devices with added iOS capabilities. It supports both standard and RPN modes, includes built-in constants, and syncs across devices via iCloud. Users can also create graphs and share calculations.

**Highlights:** Ultra high precision and range, Standard (in-fix) and RPN modes, Built-in constants and unit conversions, iCloud sync across devices, Create and share graphs, Apple Watch compatibility

**Features:** Family Sharing

**In-app purchases (1)**

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


### Surface Time

[App page](https://appshunter.io/ios/app/surface-time/id6747015704)

This app encourages you to put your phone down with an intuitive, button-free timer. It uses subtle haptics and visual cues to guide you, and offers unique notification options like LED flash or calming sounds. Track your progress towards daily goals and customize them for different tasks.

**Highlights:** Button-free timer operation, Intuitive haptic feedback, Visual timer progression, LED flash notifications, Calming sound alerts, Customizable daily goals, Progress tracking

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Surface - One Time Purchase | $5.99 | one-time |


## Frequently asked questions

### Is GraphCalcPro2Go free?

GraphCalcPro2Go is free to download, with in-app purchases available.

### Is Surface Time free?

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

### Which has better reviews, GraphCalcPro2Go or Surface Time?

Surface Time is rated higher. GraphCalcPro2Go averages 4.6 out of 5 from 40 ratings, while Surface Time averages 5.0 from 3 ratings.

### Do GraphCalcPro2Go or Surface Time have ads?

Neither GraphCalcPro2Go nor Surface Time shows ads.

### Which is updated more often, GraphCalcPro2Go or Surface Time?

GraphCalcPro2Go ships an update every 3 months, and Surface Time weekly. Most recently, GraphCalcPro2Go was updated on September 29, 2026 and Surface Time on October 5, 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.*