UnitConverter byNSDev vs Horizon Detection
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UnitConverter byNSDev
This tool converts between 26 different types of units, displaying conversion rates and allowing you to specify decimal places. It supports a vast array of units across categories like length, mass, volume, and more.
- Converts 26 types of units
- Displays conversion rates
- Customizable decimal places
- Supports numerous units in various categories
- User-submitted unit requests
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Tool to convert each of 26 types of units. When you select a unit of value that you enter, you create a table to calculate all the other units. It also displays the conversion rate. You can also specify the number of decimal places. 23 units in Length 18 units in Area 31 units in Volume 15 units in Mass 5 units in Angle 4 units in Temperature 7 units in Time 3 units in Frequency 5 units in Force 17 units in Pressure 6 units in Energy 6 units in Power rate 13 units in Speed 14 units in Acceleration 2 units in Dynamic viscosity 4 units in Kinematic viscosity 3 units in Magnetic flux density 2 units in Magnetic flux 7 units in Luminance 4 units in Illuminance 3 units in Radiation - source activity 2 units in Radiation - absorbed dose 2 units in Radiation - equivalent dose 2 units in Radiation - exposure 7 units in Infomation 7 units in Resolution Because we want to support units around the world, We will wait for the name and unit conversion information. Please enter your review.
Horizon Detection
This utility app identifies and highlights horizontal lines within an image. It's designed for users who need to analyze visual data for straight horizontal elements.
- Detects horizontal lines
- Highlights detected lines
- Image analysis tool
- Simple interface
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Detect horizontal lines in an image
Screenshots
Verdict
The clearest difference is ads: UnitConverter byNSDev at none against Horizon Detection's shown. UnitConverter byNSDev also leads on review sentiment (20% vs 0%) and monetization model (free vs ad-supported). Horizon Detection's advantage is update cadence (fortnightly vs every 5 months). On price and in-app purchases 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.
UnitConverter byNSDev ships an update every 5 months, Horizon Detection fortnightly. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.
| Parameter | UnitConverter byNSDev | Horizon Detection |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | 20.0% of reviews — better | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 17.7.2 |
| Further details — not scored | ||
| Size | 4 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | NIHON SYSTEM DEVELOPER CORPORATION | Hideaki Uchikoshi |
Customer experience
UnitConverter byNSDev
Horizon Detection
In-app purchases
UnitConverter byNSDev
No in-app purchases
Horizon Detection
No in-app purchases
Questions
Is UnitConverter byNSDev free?
Is Horizon Detection free?
Do UnitConverter byNSDev or Horizon Detection have ads?
Which is updated more often, UnitConverter byNSDev or Horizon Detection?
Other comparisons
