ScopeTool vs TowCheck
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ScopeTool
This app assists with telescope setup and alignment, providing tools like a compass, level, and calculators for celestial objects. It allows manual or GPS-based location input and offers customizable tool visibility for use in low light.
- Compass and level
- Polaris hour angle calculator
- Jupiter and Saturn moon positions
- Red/white flashlight with timer
- Manual or GPS location input
- Customizable tool visibility
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ScopeTool by Krydo helps as you set up, align and use your telescope for a good night's viewing. It includes the tools • Compass & level • Polaris hour angle and transit calculator • Positions for the main satellite moons of Jupiter and Saturn* • Red or white flashlight, with screen lock and timer functions ScopeTool can find your location by either using your device's location services (eg GPS), or you can enter your coordinates manually. The Settings tool allows you to tailor the app to your needs; turn off tools you don't use so it's easy to select the ones you want in the dark. More tools are coming; visit http://scopetool.krydo.com or tweet us on @KrydoDev to keep up with their progress, and let us know what would be useful to you! * For Jupiter, the four Galilean moons are shown. For Saturn, satellites I-VIII are included. A limiting magnitude control allows you to hide objects that are too faint to be seen, so you can match the diagram to what you can see. The location of Jupiter's Great Red Spot and attitude of Saturn's rings are also included.
TowCheck
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TowCheck helps you answer the question that matters before every trip: can I safely tow this setup today? Instead of giving you a pile of hard-to-read numbers, TowCheck checks your current vehicle, trailer, and load setup and shows a clear result: Safe, Warning, or Unsafe. Built for SUV, pickup, travel trailer, utility trailer, and boat trailer owners, TowCheck helps you catch common towing problems before you leave, including payload limits, tow rating issues, GVWR problems, and tongue or pin weight concerns. Use TowCheck to: • Run a Quick Check in seconds • Compare estimated and measured values • See what is actually limiting your setup • Understand whether the problem is payload, tow rating, GVWR, or tongue weight • Save vehicle and trailer profiles for repeat use • Compare different setups before a trip • Review practical next-step guidance, not just raw numbers TowCheck is designed for real pre-trip decisions, whether you are loading up for a weekend camping trip, towing a utility trailer for work, or checking if a different hitch or cargo plan changes the outcome. If you tow with a truck or SUV and want a faster, clearer way to check trailer safety before you go, TowCheck gives you a practical answer you can trust. TowCheck provides guidance for planning and reference only. Always confirm final safety decisions with your vehicle door sticker, owner’s manual, manufacturer ratings, and real measured weights when available.
Screenshots
Verdict
The clearest difference is iOS requirement: ScopeTool at 9.0 against TowCheck's 17.0. On price, ads, in-app purchases and device support 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.
| Parameter | ScopeTool | TowCheck |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (4 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 9 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 9.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 6 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | H Crossley | 林华 曹 |
In-app purchases
ScopeTool
No in-app purchases
TowCheck
No in-app purchases









