Comparison

Cauldryn vs GFUELER

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

Head to head
About

Cauldryn

Control your beverage's temperature precisely, from room temperature to boiling, with a battery-powered module. Keep drinks at your ideal temp all day, perfect for busy individuals or home use. Explore diverse uses like brewing, warming baby bottles, and sanitizing water.

Highlights
  • Select any temperature between room temp and boiling
  • Battery-powered heat control
  • Maintain ideal beverage temperature all day
  • Portable for on-the-go use
  • Versatile for brewing, warming, cooking, and sanitation
Features
Read full description

With the Cauldryn mug, you can select any temperature you want between room temp and boiling. With its battery powered heat control module, Cauldryn has the power to keep your desired beverage at your ideal temp all day! You no longer have to worry about rushing through your cup of coffee or using the microwave. It's the perfect tool for anyone on the go or relaxing at home with the perfect temperature coffee, tea or desired beverage. Discover all the possibilities from brewing, portable baby bottle warming, cooking soup, water sanitation and more. What will you use your Cauldryn for?

About

GFUELER

Struggling to pick a drink from your collection? This app generates a random selection from your owned flavors with a single tap. Organize your choices into custom groups and access quick selections via widgets or your Apple Watch.

Highlights
  • Random flavor selection
  • Customizable flavor groups
  • Home and Lock Screen Widgets
  • Apple Watch app and complications
  • Siri Shortcuts support
  • Fan-made utility
Features
Read full description

Can't decide which G FUEL flavor to drink?! GFUELER is here for you! Whether you have just a handful or dozens of different flavors, it can be overwhelming to figure out exactly which flavor to drink. Thanks to GFUELER, you can get your answer in record time! GFUELER is a fan made app designed to get you an answer as quickly as possible. After entering in the list of flavors you own, the app will generate a random selection at the press of a button! You can even create Groups to categorize different lists of choices! Such as Groups for Energy and Hydration Formulas, Mixes, Milk Flavors, or Cans. Need to save even more time? With support for Home and Lock Screen Widgets, an Apple Watch app, and Apple Watch complications, and Siri Shortcuts support, a selection is just a glance or a tap away! Get rid of all your indecisiveness, and give all the different flavors you've got a fair chance to be drank. (I'm looking at you, tubs in the back...)

Screenshots

Cauldryn4 screens
GFUELER4 screens

Verdict

The call

The clearest difference is review sentiment: GFUELER at 100% against Cauldryn's 9%. GFUELER also leads on rating (4.1 vs 1.3) and update cadence (every 10 days vs every 2 months). Cauldryn's advantage is in-app purchases (none vs 3) and iOS requirement (12.0 vs 15.0). On price, ratings volume, ads 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. GFUELER sells 3 one-off in-app purchases. Cauldryn asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

GFUELER holds the better App Store score, 4.1 against 1.3. Both are backed by a comparable volume of ratings — 4 and 9 respectively. Written reviews point the same way: 9% of Cauldryn's written reviews are positive against 100% of GFUELER's.

UpkeepUpdate frequency

Cauldryn ships an update every 2 months, GFUELER every 10 days. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

Scorecard6 real differences · 4 level
Cauldryn versus GFUELER: the parameters behind the verdict, then further details
ParameterCauldrynGFUELER
PriceFreeFree
Rating1.3 (4 ratings)4.1 (9 ratings) — better
Positive reviews9.1% of reviews100.0% of reviews — better
Number of ratings49 — better
Update frequencyEvery 2 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS12.0 — better15.0
Further details — not scored
Size22 MB22 MB
Age rating4+4+
DeveloperSinospecAaron Brannan

Customer experience

Cauldryn

All ratings4 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews11 reviews
Positive9.1%
Neutral27.3%
Negative63.6%

GFUELER

All ratings9 ratings
Positive77.8%
Neutral0.0%
Negative22.2%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Cauldryn

No in-app purchases

3 purchases

GFUELER

One-time3
  • $0.99 Tip$0.99
  • $2.99 Tip$2.99
  • $4.99 Tip$4.99

Questions

Is Cauldryn free?
Cauldryn is free to download, with no in-app purchases.
Is GFUELER free?
GFUELER is free to download, with in-app purchases available.
Which has better reviews, Cauldryn or GFUELER?
GFUELER is rated higher. Cauldryn averages 1.3 out of 5 from 4 ratings, while GFUELER averages 4.1 from 9 ratings.
Do Cauldryn or GFUELER have ads?
Neither Cauldryn nor GFUELER shows ads.
Which is updated more often, Cauldryn or GFUELER?
Cauldryn ships an update every 2 months, and GFUELER every 10 days. Most recently, Cauldryn was updated on October 24, 2026 and GFUELER on October 18, 2026.

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