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YAZIO vs Cronometer vs MyFitnessPal: which app has fewer problems?

We compared 300 recent App Store reviews of YAZIO, 300 recent App Store reviews of Cronometer and 500 recent App Store reviews of MyFitnessPal, each classified by AI into 7 complaint themes (samples from up to 6 storefronts, latest review 2026-10-22). Cronometer has the fewest complaints overall: 29% of its recent reviews contain a complaint, vs 73% for YAZIO and 68% for MyFitnessPal.

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Ratings at a glance

App	All-time US rating	Ratings	Avg in our sample	Reviews analysed	Reviews with a complaint	Sample dates
YAZIO	4.7★	51K	2.6★	300	73%	2025-03-17 – 2026-10-20 (583 d)
Cronometer	4.8★	100K	4.06★	300	29%	2026-01-17 – 2026-10-22 (279 d)
MyFitnessPal	–	–	2.47★	500	68%	2026-05-09 – 2026-10-19 (164 d)

Complaint themes side by side

Share of all analysed reviews that mention each theme (review count in brackets). Bold = lowest. A review can mention several themes.

Theme	YAZIO	Cronometer	MyFitnessPal
Bugs	34% (102)	15% (44)	27% (137)
Crashes / freezes	8% (23)	4% (13)	3% (15)
Performance	10% (30)	5% (15)	5% (25)
UX / design	25% (74)	9% (26)	37% (186)
Pricing / subscription	36% (109)	7% (20)	26% (131)
Ads	17% (52)	7% (20)	5% (27)
Feature requests	33% (99)	12% (35)	27% (136)

Verdict: which one has fewer problems?

Across the latest 1,100 App Store reviews we collected, Cronometer has the lowest share of reviews with a complaint (29%) and YAZIO the highest (73%). The biggest single difference is in pricing and subscription complaints: 36% of YAZIO reviews mention them, vs 7% for Cronometer. Each app's own biggest complaint theme: YAZIO, pricing / subscription (109 reviews); Cronometer, bugs (44 reviews); MyFitnessPal, ux / design (186 reviews). Average star rating in the samples ranges from 2.47★ (MyFitnessPal) to 4.06★ (Cronometer). Time span of each sample: YAZIO 583 days (2025-03-17 to 2026-10-20); Cronometer 279 days (2026-01-17 to 2026-10-22); MyFitnessPal 164 days (2026-05-09 to 2026-10-19). Because MyFitnessPal's sample covers a much shorter period, a single recent update or outage weighs more heavily in its numbers. Samples that reach back many months (fewer reviews per day) show long-running issues rather than the effect of one recent update.

Fewer bug problems: Cronometer, 15% of its reviews vs 34% for YAZIO.
Fewer crash and freeze problems: MyFitnessPal, 3% of its reviews vs 8% for YAZIO.
Fewer performance (slowness, battery, storage) problems: Cronometer, 5% of its reviews vs 10% for YAZIO.
Fewer UX / design problems: Cronometer, 9% of its reviews vs 37% for MyFitnessPal.
Fewer pricing and subscription problems: Cronometer, 7% of its reviews vs 36% for YAZIO.
Fewer ad problems: MyFitnessPal, 5% of its reviews vs 17% for YAZIO.
Fewest feature requests: Cronometer, 12% of its reviews vs 33% for YAZIO.

Gaps under 3 percentage points are called a tie. Samples are recent reviews only, so this is a snapshot of current problems, not all-time quality.

Top 3 specific issues for each app

YAZIO

Soften the redesign backlash (64 reviews, severity 2.2/3)
Improve content quality (58 reviews, severity 2.2/3)
Reduce ad frequency and length (46 reviews, severity 2.4/3)

Biggest theme: pricing / subscription. Free PDF

Cronometer

Improve content quality (20 reviews, severity 2.2/3)
Reduce ad frequency and length (17 reviews, severity 2.4/3)
Simplify navigation (16 reviews, severity 2.3/3)

Biggest theme: bugs. Free PDF

MyFitnessPal

Soften the redesign backlash (214 reviews, severity 2.3/3)
Simplify navigation (127 reviews, severity 2.3/3)
Ship the most requested feature (89 reviews, severity 2.1/3)

Biggest theme: ux / design. Free PDF

FAQ

Which has fewer problems overall: YAZIO, Cronometer or MyFitnessPal?

In the most recent App Store reviews we analysed, Cronometer had the lowest share of reviews with a complaint (29% of 300) and YAZIO the highest (73% of 300). YAZIO: 218 of 300; Cronometer: 86 of 300; MyFitnessPal: 341 of 500.

Which has fewer bug complaints: YAZIO, Cronometer or MyFitnessPal?

Cronometer. YAZIO: 102 of 300 recent reviews (34%); Cronometer: 44 of 300 recent reviews (15%); MyFitnessPal: 137 of 500 recent reviews (27%).

Which has fewer crash and freeze complaints: YAZIO, Cronometer or MyFitnessPal?

MyFitnessPal. YAZIO: 23 of 300 recent reviews (8%); Cronometer: 13 of 300 recent reviews (4%); MyFitnessPal: 15 of 500 recent reviews (3%).

Which has fewer pricing and subscription complaints: YAZIO, Cronometer or MyFitnessPal?

Cronometer. YAZIO: 109 of 300 recent reviews (36%); Cronometer: 20 of 300 recent reviews (7%); MyFitnessPal: 131 of 500 recent reviews (26%).

Which has fewer ad complaints: YAZIO, Cronometer or MyFitnessPal?

MyFitnessPal. YAZIO: 52 of 300 recent reviews (17%); Cronometer: 20 of 300 recent reviews (7%); MyFitnessPal: 27 of 500 recent reviews (5%).

Which is rated higher on the App Store: YAZIO, Cronometer or MyFitnessPal?

All-time US App Store ratings: YAZIO 4.7★ from 51K ratings; Cronometer 4.8★ from 100K ratings. Cronometer is highest, but all-time ratings move slowly; the recent-review samples above show current problems.

How recent is this YAZIO vs Cronometer vs MyFitnessPal data?

Each sample is the most recent public App Store reviews we could collect (from up to 6 storefronts): YAZIO: 300 reviews over 583 days (2025-03-17 to 2026-10-20); Cronometer: 300 reviews over 279 days (2026-01-17 to 2026-10-22); MyFitnessPal: 500 reviews over 164 days (2026-05-09 to 2026-10-19). It is a snapshot of current problems, not all-time quality.

What is the most common complaint about YAZIO, Cronometer and MyFitnessPal?

YAZIO: pricing / subscription (109 of 300 reviews), top-ranked fix: “soften the redesign backlash”; Cronometer: bugs (44 of 300 reviews), top-ranked fix: “improve content quality”; MyFitnessPal: ux / design (186 of 500 reviews), top-ranked fix: “soften the redesign backlash”.

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