Comparison

DualTry vs LeftToday

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

DualTry

Features
Read full description

DualTry helps you document and compare personal experiments with structured A/B and multi-variable comparisons. Whether testing two options or multiple alternatives at once, capture photos, use voice-to-text for quick input, and record your variable descriptions with ease. Set optional timers to track experiment duration, then document your conclusions with result summaries and winner selections. Filter your experiments by status, search by title, and keep everything organized in one private journal. DualTry is a lightweight, multimedia experiment tracker designed for curious minds who want to explore what works best — all data stored securely and visible only to you.

About

LeftToday

Accurately track calorie intake by photographing your meals before and after eating. This app uses advanced food recognition to calculate consumed nutrients, eliminating manual logging and estimation for real-life eating habits.

Highlights
  • Photo-based calorie counting
  • Advanced food recognition
  • Precise nutrient calculation
  • Automatic meal logging
  • Nutrition trend review
  • Custom food entries
Features
Read full description

LeftToday Make calorie counting finally accurate, no more guessing how much you actually ate If you are one of the millions of US adults tracking calories to reach your weight loss or health goals, you know the frustration of inaccurate intake logs. Most calorie trackers force you to estimate portions or log full servings even when you leave half your meal on the plate, leading to misleading data that keeps you from hitting your goals. LeftToday fixes that with a simple, intuitive system built for real life eating habits. All you have to do is snap a photo of your full plate as soon as it is served, then take a second photo of whatever is left when you finish eating. Our advanced food recognition technology instantly identifies every item on your plate, calculates the difference between the original serving and the leftover portion, and gives you a precise count of the calories, protein, carbs, fat, and fiber you actually consumed. No more weighing food, no more manually entering every ingredient, no more overestimating or underestimating your daily intake by hundreds of calories. LeftToday recognizes thousands of common American foods, from fast food burgers and fries, to homemade casseroles, restaurant salads, takeout bowls, coffee shop drinks, and more. The app automatically saves your meal logs so you can review your daily, weekly, and monthly nutrition trends whenever you want, helping you spot patterns, adjust your eating habits, and stay on track with your goals. You can also add custom food entries to your personal library for any less common dishes you eat regularly, so recognition gets even faster and more tailored to your diet over time. Whether you are working toward a weight loss target, building muscle, or just trying to eat more mindfully, LeftToday removes the hassle and guesswork from nutrition tracking. It fits seamlessly into your existing routine: you already take photos of your meals anyway, now those photos do the hard work for you. Stop wasting time on complicated, inaccurate trackers that do not match how you actually eat. Download LeftToday today and start getting the reliable nutrition data you need to reach your health goals.

Screenshots

DualTry4 screens
LeftToday3 screens

Verdict

The call

The clearest difference is in-app purchases: DualTry at none against LeftToday's 9. DualTry also leads on ads (none vs shown) and iOS requirement (13.0 vs 17.0). On price, update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. LeftToday sells 9 one-off in-app purchases. DualTry asks for nothing beyond the download.

UpkeepUpdate frequency

DualTry ships an update weekly, LeftToday every 5 days. The most recent releases landed on October 12, 2026 and October 1, 2026 respectively.

Scorecard3 real differences · 6 level
DualTry versus LeftToday: the parameters behind the verdict, then further details
ParameterDualTryLeftToday
PriceFreeFree
Rating—4.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyWeeklyEvery 5 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPod — betteriPhone
Requires iOS13.0 — better17.0
Further details — not scored
Size56 MB26 MB
Age rating17+17+
Developer飞宇 洪Louisa Joel

In-app purchases

None

DualTry

No in-app purchases

9 purchases

LeftToday

One-time9
  • LeftToday Gold - Special$2.99
  • LeftToday Gold$4.99
  • LeftToday Gold - Special$4.99
Show 6 more
  • LeftToday Gold$12.99
  • LeftToday Gold - Special$19.99
  • LeftToday Gold$29.99
  • LeftToday Gold - Special$39.99
  • LeftToday Gold$49.99
  • LeftToday Gold$79.99

Questions

Is DualTry free?
DualTry is free to download, with no in-app purchases.
Is LeftToday free?
LeftToday is free to download, with in-app purchases available.
Do DualTry or LeftToday have ads?
LeftToday shows ads; DualTry does not.
Which is updated more often, DualTry or LeftToday?
DualTry ships an update weekly, and LeftToday every 5 days. Most recently, DualTry was updated on October 12, 2026 and LeftToday on October 1, 2026.

Other comparisons