Comparison

SubStandard vs Joanes

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

Head to head
About

SubStandard

This aviation utility app simplifies applying cold temperature corrections for altitudes. It allows users to save frequently used altitude sets for rapid retrieval, enhancing efficiency in flight planning.

Highlights
  • Cold temperature corrections
  • Altitude set storage
  • Quick access to saved altitudes
  • Easy to use interface
Features
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SubStandard is an easy to use app to apply cold temperature corrections in aviation. Moreover, it lets you store sets of altitudes for quick access later on.

About

Joanes

Features
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Joanes is the app designed by and for painters. Whether you work in oil, acrylic or watercolor, Joanes accompanies you from picking colors to the brushstroke. — REFERENCE ANALYSIS Import a photo, tap any point, and Joanes identifies the closest pigment in your range. Calibrate the white for maximum accuracy. — KUBELKA-MUNK ENGINE All mixes are calculated using the spectral physical model used by color chemists. No more guesswork: you know exactly which pigments to mix and in what proportions to achieve a target color. — MY PALETTE Photograph your real palette, Joanes identifies each dab and tells you which pigments you've laid out. — AR TRACING Project your sketch in augmented reality directly onto your canvas. Place it, adjust it, choose between normal view and contour view (ghost), then trace. — STEP BY STEP Break down any photo into 5 classic painting steps: imprimatura, block-in, values, details, finish. With the pigments to use at each step. — TRAIN YOUR EYE Color recognition challenges in easy, medium or expert mode. Earn bronze, silver and gold trophies per color. — 100% OFFLINE No account, no data sent online. Your photos and creations stay on your device. Available in French, English, Spanish, Portuguese, German, Italian, Japanese.

Screenshots

SubStandard4 screens
Joanes4 screens

Verdict

The call

The clearest difference is update cadence: Joanes at every 3 days against SubStandard's every 7 months. SubStandard's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.6). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SubStandard ships an update every 7 months, Joanes every 3 days. The most recent releases landed on October 20, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 7 level
SubStandard versus Joanes: the parameters behind the verdict, then further details
ParameterSubStandardJoanes
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 7 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS12.0 — better16.6
Further details — not scored
Size33 MB8 MB
Age rating4+4+
DeveloperiService Ottner RöckJEAN EBOLO AHANDA

In-app purchases

None

SubStandard

No in-app purchases

None

Joanes

No in-app purchases

Questions

Is SubStandard free?
SubStandard is free to download, with no in-app purchases.
Is Joanes free?
Joanes is free to download, with no in-app purchases.
Do SubStandard or Joanes have ads?
Neither SubStandard nor Joanes shows ads.
Which is updated more often, SubStandard or Joanes?
SubStandard ships an update every 7 months, and Joanes every 3 days. Most recently, SubStandard was updated on October 20, 2026 and Joanes on October 12, 2026.

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