DefectiveIntervalTimer vs Kado
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DefectiveIntervalTimer
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NO ADS Defective Interval Timer makes it easy to create and run timed interval sessions for workouts, stretching, training, recovery, practice, and everyday activities. Choose your work time, rest time, number of rounds, and alert volume, then start the timer and follow clear visual, audio, vibration, and notification cues as you move through each interval. Use quick settings to build your own timing pattern or choose from included Northwick Fitness-inspired presets for endurance training, superset/power sessions, and pre- or post-workout stretching. FEATURES • Custom work and rest intervals • Up to 99 rounds • Quick timer setup • Northwick Fitness-inspired presets • Pause and resume controls • Hold-to-reset protection • Clear work, rest, paused, and finished indicators • Audio alerts for interval changes • Vibration feedback • Adjustable alert volume • Background interval notifications • Displays elapsed and total session time • Optional $1 Support Developer purchase • Works without an account • No internet connection required for timer use • No ads The optional Support Developer purchase does not unlock content, remove restrictions, change timer features, or provide any advantage. Whether you are exercising, stretching, studying, practicing, or completing timed tasks, Defective Interval Timer helps keep every session organized.
Kado
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Kado is a focused interval timer for simple, repeatable workouts. Create a routine once, then start it with one tap. Choose an optional Get Ready countdown, one Work duration, one Rest duration, and the number of intervals. Kado inserts Rest only between Work intervals—never after the final interval. FEATURES • Save and reorder reusable routines • Clear, glanceable countdown in portrait or landscape • Pause, resume, skip, restart, and repeat • Sounds, haptics, and transition notifications • Light, dark, and system appearance • Dynamic Type and VoiceOver support • English, German, French, Polish, and Dutch • No accounts, ads, analytics, or cloud services Kado works completely offline. Your routines stay on your iPhone.
Screenshots
Verdict
DefectiveIntervalTimer and Kado are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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 | DefectiveIntervalTimer | Kado |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone |
| Requires iOS | 26.5 | 26.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | ROBERT ALLEN NORTHWICK | Jan Lennartz |
In-app purchases
DefectiveIntervalTimer
No in-app purchases
Kado
No in-app purchases
Questions
Is DefectiveIntervalTimer free?
Is Kado free?
Do DefectiveIntervalTimer or Kado have ads?
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