VibeSpectra vs iVerbs
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VibeSpectra
This app serves as a reference guide for understanding vibration spectrums in rotating machinery. It details expected patterns for common faults in components like gears, bearings, and motors. The language can be switched to Spanish.
- Predictive maintenance reference
- Vibration spectrum analysis
- Fault identification for rotating machinery
- Covers various components (gears, bearings, motors)
- Spanish language option
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VibeSpectra is a reference guide for the predictive maintenance of rotating machinery. Included are expected vibration spectrum for various faults in rotating machinery components such as: The language can be changed to spanish through the setting. - Rotor Imbalance - Misalignment - Gears - Rolling Element Bearings - Journal Bearing - Induction Motors - Looseness - Bent Shaft Disclaimer: VibeSpectra is intended for educational purposes. Although the information in this App was carefully prepared with great care, it may contain errors or inaccuracies. Using the results of the calculations is the responsibility of the user.
iVerbs
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All 470 irregular verbs are accessible on your wrist! The app contains all 470 English irregular verbs. You can use search in the app or even by using the spotlight service. Mark most useful verbs as "Favorite" and filter them through the search bar. All of them will be synchronized on your Watch and your iPhone. It's an essential app for everyone learning the English language! FEATURES: iOS: - the full list of English irregular verbs; - search through the iOS spotlight feature; - pronounce verbs; - copy word or transcription; - compatible with iPad; - force touch to preview all forms of a verb; - dynamic type; WatchOS: - the full list of verbs is accessible on your wrist; - easy navigation to find needed verb; - runtime synchronization of your favorite verbs on you Watch and your iPhone.
Screenshots
Verdict
The clearest difference is in-app purchases: VibeSpectra at none against iVerbs's 1. VibeSpectra also leads on update cadence (every 4 weeks vs every 2 months) and iOS requirement (7.0 vs 17.0). On price, 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. iVerbs sells 1 one-off in-app purchase. VibeSpectra asks for nothing beyond the download.
VibeSpectra ships an update every 4 weeks, iVerbs every 2 months. The most recent releases landed on October 15, 2026 and October 13, 2026 respectively.
| Parameter | VibeSpectra | iVerbs |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (2 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 4 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 7.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 27 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Motionics LLC | Maksym Kolotii |
In-app purchases
VibeSpectra
No in-app purchases
iVerbs
- Say Thanks$0.99









