Comparison

SolWalks vs Kronx

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

Head to head
About

SolWalks

Features
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SolWalks is a tool that helps you develop a habit of taking outdoor walks at the time intervals most efficient to synchronize your circadian clock. In the early 2000s, a type of photosensitive cell called ipRGC was discovered in the human eye. These cells are involved in registering the ambient light illuminance on a subconscious level. It is proved that this signal is the main way to synchronize the body's circadian clock. Spending most of the day indoors and using artificial light frequently can lead to desynchronization of your circadian clock, impaired sleep, increased fatigue, and a depressed mood. SolWalks has a built-in light meter that will allow you to assess the ambient light illuminance, in a similar manner as it happens on a subconscious level. The app is integrated with HealthKit. It visualizes your HealthKit walks data, raising your awareness of the time you spent outside and motivating you to stick to the habit of walking at the optimal time of the day. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Kronx

Read full description

In a world overwhelmed with confusing advice, we provide a logical, structured approach that starts with the fundamentals—optimizing your circadian rhythms. By creating daily habits that align your behavior with your body's natural clock, Kronx helps your body work more efficiently—resulting in improved energy, recovery, and performance, and launching your journey toward a healthier future. Key Features: Circadian Rhythm Optimization:
Leverage a science-backed approach that aligns your daily behavior with your body’s natural clock to maximize energy, recovery, and overall performance. Consistent routines, as demonstrated by circadian biology research, enhance metabolic function, balance hormones, and support overall health. Structured Habit Modules:
Establish a robust foundation with targeted interventions at specific times. Habits divided into four modules—Rest, Start, Move, and Calm—align with key periods of the day to keep your physiological processes synchronized with your body's natural rhythms, ensuring every system runs smoothly and efficiently. Personalized Performance & Recovery Tracking:
By measuring your recovery and performance metrics alongside your adherence to key habits, you gain clear insights into how your routines impact your well-being. This data not only empowers you to fine-tune your habits for optimal results but also motivates you to stay on track. Data-Driven Insights & Feedback:
Benefit from trend analysis and actionable recommendations that help you fine-tune your habits for long-term wellness and optimal physiological function.

Screenshots

SolWalks4 screens
Kronx4 screens

Verdict

The call

SolWalks and Kronx are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SolWalks ships an update every 2 weeks, Kronx weekly. The most recent releases landed on December 20, 2025 and September 9, 2026 respectively.

ScorecardNo meaningful differences
SolWalks versus Kronx: the parameters behind the verdict, then further details
ParameterSolWalksKronx
PriceFreeFree
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad — better
Requires iOS16.2 — better17.0
Further details — not scored
Size4 MB13 MB
Age rating4+4+
DeveloperEvgeniy BasistyiElevon.io

In-app purchases

None

SolWalks

No in-app purchases

None

Kronx

No in-app purchases

Questions

Is SolWalks free?
SolWalks is free to download, with no in-app purchases.
Is Kronx free?
Kronx is free to download, with no in-app purchases.
Do SolWalks or Kronx have ads?
Neither SolWalks nor Kronx shows ads.
Which is updated more often, SolWalks or Kronx?
SolWalks ships an update every 2 weeks, and Kronx weekly. Most recently, SolWalks was updated on December 20, 2025 and Kronx on September 9, 2026.

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