# Big Digits Tape Calculator vs NextUpReef

The clearest difference is review sentiment: NextUpReef at 50% against Big Digits Tape Calculator's 0%. NextUpReef also leads on price (Free vs $2.99) and rating (3.7 vs 1.5). Big Digits Tape Calculator's advantage is in-app purchases (none vs 2) and ratings volume (16 vs 3). On ads and device support there is nothing between them.

NextUpReef is free to download; Big Digits Tape Calculator costs $2.99 up front. NextUpReef sells 2 in-app purchases, starting at $4.99 per month. Big Digits Tape Calculator asks for nothing beyond the download.

NextUpReef holds the better App Store score, 3.7 against 1.5. That said, the two scores are not equally well evidenced: Big Digits Tape Calculator has 16 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of Big Digits Tape Calculator's written reviews are positive against 50% of NextUpReef's.

Big Digits Tape Calculator ships an update every 68 months, NextUpReef every 5 days. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Big Digits Tape Calculator | NextUpReef |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [1.5 (16 ratings)](https://appshunter.io/ios/app/big-digits-tape-calculator/id977537994/reviews) | **[3.7 (3 ratings)](https://appshunter.io/ios/app/nextupreef/id6760728959/reviews)** |
| Number of ratings | **16** | 3 |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 68 months | **Every 5 days** |
| Monetization | Paid | **Freemium** |
| Size | 1 MB | 59 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Alan Mrvica](https://appshunter.io/developer/593306623) | [Adam Winstead](https://appshunter.io/developer/1885950916) |

## What reviewers say

### Big Digits Tape Calculator

[App page](https://appshunter.io/ios/app/big-digits-tape-calculator/id977537994)

A straightforward calculator app designed for clarity with large, easy-to-read digits and a digital tape to record calculations. It offers a simple interface for quick computations on your mobile devices.

**Highlights:** Large digit display, Digital calculation tape, Simple user interface, iPad and iPhone compatible

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

**In-app purchases:** none


### NextUpReef

[App page](https://appshunter.io/ios/app/nextupreef/id6760728959)

Manage your entire reef aquarium system in one app. Track water chemistry, dosing, equipment, and livestock with AI-powered advice tailored to your tank. Includes reminders and a guide for new reefers.

**Highlights:** Water chemistry logging, Dosing checklists and calculators, Equipment control (Apex, Shelly), Livestock and maintenance tracking, AI-powered tank analysis, New tank setup guide, Community tank comparisons

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NextUpReef Pro | $4.99 | per month |
| NextUpReef Pro | $39.99 | per year |


## Frequently asked questions

### Is Big Digits Tape Calculator free?

Big Digits Tape Calculator costs $2.99, with no in-app purchases.

### Is NextUpReef free?

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

### Which has better reviews, Big Digits Tape Calculator or NextUpReef?

NextUpReef is rated higher. Big Digits Tape Calculator averages 1.5 out of 5 from 16 ratings, while NextUpReef averages 3.7 from 3 ratings.

### Do Big Digits Tape Calculator or NextUpReef have ads?

Neither Big Digits Tape Calculator nor NextUpReef shows ads.

### Which is updated more often, Big Digits Tape Calculator or NextUpReef?

Big Digits Tape Calculator ships an update every 68 months, and NextUpReef every 5 days. Most recently, Big Digits Tape Calculator was updated on November 1, 2026 and NextUpReef on November 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.*