The Number Line vs DEA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The Number Line
This app allows users to visualize numbers on a number line and calculate the absolute difference between two numbers. It functions offline, making it accessible anytime and anywhere. Designed for ease of use and speed, it aims to be a go-to math tool.
- Number line visualization
- Absolute difference calculator
- Offline functionality
- Intuitive interface
- Fast operation
- Supports positive and negative numbers
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The iOS Number Line App was created in response to requests by visitors to our popular https://numbermaniacs.com website. Our visitors wanted a standalone application that does not require an Internet connection to locate numbers on a number line. In addition to showing numbers on a number line, this app also includes a calculator that can calculate the absolute difference between two numbers. This may be especially helpful when dealing with the absolute difference between a positive and a negative number. The Number Line App does not require an Internet connection, so you can use it anytime and anywhere. The goal was to make the app intuitive, clutter free, fast to operate, and easy to use. We hope the Number Line App will become one of your favorite math apps.
DEA
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PASS YOUR DEA-C01 AWS DATA ENGINEER ASSOCIATE EXAM 500+ practice questions covering all exam domains 5-minute study sessions that fit your busy schedule Track progress with daily streaks and analytics 94% first-attempt pass rate WHY GET CERTIFIED? Certified AWS Data Engineers earn up to $203K annually (Skillsoft 2024). Cloud data engineering jobs growing 15%+ faster than average. This associate-level certification opens doors to high-paying roles at top tech companies. WHAT YOU'LL MASTER: Data ingestion and transformation with AWS Glue, EMR, and Lambda Building and orchestrating ETL pipelines using AWS services Data store management with Redshift, S3, DynamoDB, and RDS Data operations, monitoring, and troubleshooting with CloudWatch Data security, encryption, governance, and IAM best practices Working with Kinesis, Athena, Lake Formation, and Step Functions STUDY ANYWHERE: Coffee breaks. Commutes. Lunch hours. Turn dead time into career growth. Master AWS data engineering while you wait in line or ride the train. Download now. Pass your exam. Boost your salary.
Screenshots
Verdict
The clearest difference is ads: DEA at none against The Number Line's shown. DEA also leads on update cadence (every 2 months vs every 21 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
The Number Line ships an update every 21 months, DEA every 2 months. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.
| Parameter | The Number Line | DEA |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 21 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | H Valeur | Davy Raitt |
In-app purchases
The Number Line
No in-app purchases
DEA
No in-app purchases









