# ArrayCalc Viewer vs Anchor

The clearest difference is rating: Anchor at 5.0 against ArrayCalc Viewer's 4.1. Anchor also leads on update cadence (every 2 weeks vs every 4 months). ArrayCalc Viewer's advantage is in-app purchases (none vs 3) and iOS requirement (16 vs 18.5). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Anchor sells 3 in-app purchases, starting at $0.99 per month. ArrayCalc Viewer asks for nothing beyond the download.

Anchor holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 8 and 4 respectively.

ArrayCalc Viewer ships an update every 4 months, Anchor every 2 weeks. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | ArrayCalc Viewer | Anchor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (8 ratings)](https://appshunter.io/ios/app/arraycalc-viewer/id1181023656/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/anchor-todo-and-habit-manager/id6790155158/reviews)** |
| Number of ratings | **8** | 4 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Monetization | **Free** | Freemium |
| Size | 38 MB | 5 MB |
| Requires iOS | **16** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [d&b audiotechnik GmbH & Co. KG](https://appshunter.io/developer/1174327968) | [Bethany Barrett](https://appshunter.io/developer/6790155310) |

## What reviewers say

### ArrayCalc Viewer

[App page](https://appshunter.io/ios/app/arraycalc-viewer/id1181023656)

Access detailed project data for rigging d&b audiotechnik loudspeaker systems on your iOS device. Share and view essential rigging, setup, and system information for efficient, paperless operation.

**Highlights:** Access project data for rigging d&b loudspeaker systems, View splay angle, amplifier ID, and cabling info, Check flying frame height and lowest edge height, See frame angle, aiming, and pickpoints, Access weight and load status, Receive immediate updates on system design changes, Paperless and efficient rigging operations

**Features:** Vision Pro support

**In-app purchases:** none


### Anchor

[App page](https://appshunter.io/ios/app/anchor-todo-and-habit-manager/id6790155158)

Organize your life by consolidating habits, tasks, and projects into a single, focused interface. Track progress with detailed charts and stay on schedule with calendar integration and home screen widgets.

**Highlights:** Habit tracking with custom intervals, Task management with due dates, Project breakdown into smaller tasks, Apple Calendar sync, Focus Mode for deep work, Progress charts and statistics, Home screen widgets

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Anchor Premium (Monthly) | $0.99 | per month |
| Anchor Premium (Yearly) | $9.99 | per year |
| Anchor Premium (Lifetime) | $12.99 | one-time |


## Frequently asked questions

### Is ArrayCalc Viewer free?

ArrayCalc Viewer is free to download, with no in-app purchases.

### Is Anchor free?

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

### Which has better reviews, ArrayCalc Viewer or Anchor?

Anchor is rated higher. ArrayCalc Viewer averages 4.1 out of 5 from 8 ratings, while Anchor averages 5.0 from 4 ratings.

### Do ArrayCalc Viewer or Anchor have ads?

Neither ArrayCalc Viewer nor Anchor shows ads.

### Which is updated more often, ArrayCalc Viewer or Anchor?

ArrayCalc Viewer ships an update every 4 months, and Anchor every 2 weeks. Most recently, ArrayCalc Viewer was updated on November 6, 2026 and Anchor 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.*