Comparison

IKI vs CGX

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

Head to head
About

IKI

Control your Finnish sauna heater remotely from your smartphone. Schedule heating times and monitor the temperature to ensure a perfectly hot sauna experience upon arrival.

Highlights
  • Remote sauna heating
  • Temperature monitoring
  • Timed start functionality
  • Calendar style bookings
  • Heating notifications
Features
Read full description

Heat your sauna from your phone! IKI sauna heaters are built in Finland, hand-made from stainless steel and other high-quality materials that meet the most demanding standards creating the most memorable sauna-bathing experience. With IKI mobile app you can heat your sauna comfortably from wherever you are. Whether you are at the end of a long workday, coming home from a trip or going out for a run, with a couple of clicks on your phone you can have a hot sauna waiting for you when you get home. Together with a timed start and calendar style bookings you will never have to wait for your sauna to get hot again. The app will notify you when your sauna is about to reach the target temperature. You can also monitor the sauna temperature from the mobile app.

About

CGX

This premium strength and fitness app offers structured, progressive training programs for all levels. Access hundreds of on-demand workouts, instructional videos, and progress tracking. It also provides meal ideas and expert articles to support your fitness journey.

Highlights
  • Exclusive workout programs
  • On-demand strength and cardio
  • Coached training with form focus
  • Instructional videos
  • Progress tracking
  • Meal ideas
  • Offline training
Features
Read full description

Build who you want to be with CGX by Caroline Girvan. CGX is a premium strength and fitness app built around exclusive, structured training programs. Every program is progressive and designed to help you build strength, improve fitness, and train with consistency over time. Inside CGX you’ll find: • Exclusive workout programs for all levels, from complete beginner to advanced • Hundreds of on-demand strength, cardio, and conditioning workouts • Clear, coached training with a strong focus on proper form and technique • Short, effective workouts that fit real life without compromising results CGX goes beyond the workout itself, supporting your training journey in a practical and sustainable way: • Instructional videos to help you train safely and confidently • Simple progress tracking and quick fitness tests • Nutritious, budget-friendly meal ideas • Evidence-based articles from Caroline and trusted industry experts Train in a way that suits your routine: • Schedule workouts and programs in your CGX calendar • Download workouts for offline training • Cast workouts to your TV with AirPlay or Chromecast • Choose Caroline’s music, no music, or your own via Apple Music or Spotify • Sync your training with Apple Health • Save favourites and track progress workout by workout • Share encouragement and tips through supportive comments under each workout • Train anywhere using the CGX website on your laptop or computer Caroline Girvan is a certified personal trainer, MNU certified nutritionist, and pre- and postnatal specialist with over a decade of experience and a global following of millions. CGX brings her proven training approach into a focused, premium platform designed for long-term progress. Build who you want to be. Cx

Screenshots

IKI3 screens
CGX4 screens

Verdict

The call

The clearest difference is rating: CGX at 4.2 against IKI's 2.5. CGX also leads on update cadence (every 8 days vs every 21 months) and ratings volume (643 vs 6). IKI's advantage is in-app purchases (none vs 2). On price, ads, device support and iOS requirement 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. CGX sells 2 in-app purchases, starting at $12.99 per month. IKI asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CGX holds the better App Store score, 4.2 against 2.5. That said, the two scores are not equally well evidenced: CGX has 643 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 33% of IKI's written reviews are positive against 55% of CGX's.

UpkeepUpdate frequency

IKI ships an update every 21 months, CGX every 8 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard7 real differences · 4 level
IKI versus CGX: the parameters behind the verdict, then further details
ParameterIKICGX
PriceFreeFree
Rating2.5 (6 ratings)4.2 (643 ratings) — better
Positive reviews33.3% of reviews54.5% of reviews — better
Number of ratings6643 — better
Update frequencyEvery 21 monthsEvery 8 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
Best chart rank—#120 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.1 — better15.4
Further details — not scored
Size42 MB67 MB
Age rating4+4+
DeveloperHUUMCGX Ltd

Customer experience

IKI

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

CGX

All ratings643 ratings
Positive75.9%
Neutral10.1%
Negative14.0%
Written reviews352 reviews
Positive54.5%
Neutral20.5%
Negative25.0%

Bugs and requests

IKI

Not enough reviews yet to summarise bugs or requests.

CGX

Reported bugs

5 issues
  • App crashes during workouts
  • Workouts not recording as completed
  • Calendar not syncing properly
  • Login issues with existing accounts
  • Airplay/casting not working consistently

Requested features

5 requests
  • Ability to mark/track completed workouts
  • Option to remove entire programs from calendar
  • Customizable rest day scheduling
  • Integration with fitness trackers
  • Web/desktop version of the app

In-app purchases

None

IKI

No in-app purchases

2 purchases

CGX

Subscriptions2
  • Monthly14 Days trial$12.991 Month
  • Annually14 Days trial$99.991 Year

Questions

Is IKI free?
IKI is free to download, with no in-app purchases.
Is CGX free?
CGX is free to download, with in-app purchases available.
Which has better reviews, IKI or CGX?
CGX is rated higher. IKI averages 2.5 out of 5 from 6 ratings, while CGX averages 4.2 from 643 ratings.
Do IKI or CGX have ads?
Neither IKI nor CGX shows ads.
Which is updated more often, IKI or CGX?
IKI ships an update every 21 months, and CGX every 8 days. Most recently, IKI was updated on October 24, 2026 and CGX on October 25, 2026.

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