# Addition Concentrated vs Portal Graph

The clearest difference is update cadence: Portal Graph at every 3 weeks against Addition Concentrated's every 25 months. Addition Concentrated's advantage is iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Addition Concentrated costs $0.99 and Portal Graph $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Addition Concentrated ships an update every 25 months, Portal Graph every 3 weeks. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Addition Concentrated | Portal Graph |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/addition-concentrated/id548958374/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 2 MB | 57 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Catherine Vitti](https://appshunter.io/developer/548958377) | [Seth Weinrauch](https://appshunter.io/developer/6781618648) |

## What reviewers say

### Addition Concentrated

[App page](https://appshunter.io/ios/app/addition-concentrated/id548958374)

Practice addition with single to five-digit numbers using two distinct methods. Offers visual customization options for accessibility and large display for classroom use.

**Highlights:** Addition practice, Single to five-digit numerals, Column-by-column method, Multiple choice mode, Customizable background colors, Large numeral display

**Features:** macOS Compatibility

**In-app purchases:** none


### Portal Graph

[App page](https://appshunter.io/ios/app/portal-graph/id6781618646)

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

**In-app purchases:** none


## Frequently asked questions

### Is Addition Concentrated free?

Addition Concentrated costs $0.99, with no in-app purchases.

### Is Portal Graph free?

Portal Graph costs $0.99, with no in-app purchases.

### Do Addition Concentrated or Portal Graph have ads?

Neither Addition Concentrated nor Portal Graph shows ads.

### Which is updated more often, Addition Concentrated or Portal Graph?

Addition Concentrated ships an update every 25 months, and Portal Graph every 3 weeks. Most recently, Addition Concentrated was updated on November 6, 2026 and Portal Graph on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*