Decay calc vs Terminator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Decay calc
This tool calculates the decay of radioactive isotopes over time, considering half-life for accurate activity predictions. It's useful in nuclear medicine, environmental monitoring, and radiation safety for handling and disposal of materials.
- Radioactive isotope decay calculation
- Half-life integration
- Activity prediction
- Decay constant determination
- Radiation dose calculation
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Decay calc is a tool used to calculate the decay of radioactive isotopes over time. It takes into account the half-life of the isotope and allows for accurate predictions of the remaining activity of the isotope at any given time. Decay calc can be used in a variety of fields, such as nuclear medicine, environmental monitoring, and radiation safety. It can help determine the appropriate handling and disposal of radioactive materials and ensure the safety of individuals who may come into contact with them. In addition to calculating the remaining activity of the isotope, decay calc can also be used to determine the decay constant, which is a measure of the rate at which the isotope decays. This information can be used to calculate the radiation dose received by individuals who are exposed to the isotope. Overall, decay calc is a useful tool for anyone working with radioactive materials or interested in learning more about radioactivity and its effects. It provides accurate and reliable calculations that can help ensure safety and proper handling of radioactive materials.
Terminator
Modify your car's sound using a BLE-connected device. Choose from a variety of sound options within the app for a personalized audio experience. Gain full control over your vehicle's acoustics.
- BLE car sound modification
- Multiple sound options
- Full audio control
- Customizable car acoustics
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Terminator - это приложение, которое позволяет вам изменять звук вашего автомобиля с помощью приложения по BLE. Вы можете подключиться к специальному устройству, установленной в вашем автомобиле, и выбрать один из множества звуков, доступных в приложении. Terminator - это уникальное приложение, которое дает вам полный контроль над звуком вашего автомобиля.
Screenshots
Verdict
The clearest difference is rating: Terminator at 5.0 against Decay calc's 1.0. Terminator also leads on in-app purchases (none vs 1) and update cadence (every 10 days vs every 3 months). On price, ratings volume, ads 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. Decay calc sells 1 one-off in-app purchase. Terminator asks for nothing beyond the download.
Terminator holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
Decay calc ships an update every 3 months, Terminator every 10 days. The most recent releases landed on October 8, 2026 and September 29, 2026 respectively.
| Parameter | Decay calc | Terminator |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 3 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.2 | 15.0 — better |
| Further details — not scored | ||
| Size | 27 MB | 16 MB |
| Age rating | 17+ | 4+ |
| Developer | Alexey Baranov | Victor Konoplianik |
Customer experience
Decay calc
Terminator
In-app purchases
Decay calc
- Radio calc$0.99
Terminator
No in-app purchases
