Comparison

TrimixBlending vs SpolynEST

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

Head to head
About

TrimixBlending

Features
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This app allows technical divers to create custom Trimix blends (Helium, Oxygen, Nitrogen) using partial pressure blending (PPB), with support for Nitrox top-ups and ideal gas law calculations for precise gas mixing. Real Gas Calculations, uses equations of state (Van der Waals) for accurate blending. Accounts for molecular interactions and non-ideal behavior

About

SpolynEST

Features
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SpolynEST turns a Spolyn electronic scoring target into a complete training system for 10m air pistol and air rifle. IMPORTANT: This app is a companion to Spolyn electronic target hardware. A Spolyn target is required to record shots. Without one you can still sign in and review your training history, but the app cannot score live shooting. INSTANT, OBJECTIVE SCORING Fire a shot and see it appear on screen immediately. The target reports exactly where the pellet struck, and the app scores it to ISSF standards — full ring scoring, decimal scoring and inner tens — with no walking downrange and no guesswork over a scoring gauge. BUILT FOR REAL PRACTICE • Air pistol and air rifle, with 40, 50 and 60 shot matches or open practice • Sighting shots, countdown and match phases with regulation timers • Shots grouped into series, with running totals and group analysis • Spoken announcements after every shot, so you never look away from your sights • Connects over Bluetooth, Wi-Fi or USB • Calibration controls to align the app with your target SEE YOUR PROGRESS Every session is saved. Track total shots, average and best scores, and your score trend over weeks and months. An activity calendar shows the days you trained. Open any past session to replay it shot by shot on the target face, or export a session report as a PDF to share with your coach. FIND AND JOIN AN ACADEMY Browse shooting academies using Spolyn targets, see their admission plans, and request to enrol. Enrolment is confirmed by a one-time passcode and approved by the academy. FOR ACADEMIES AND COACHES Academy owners can run their range from the app: • A digital attendance register, with a month calendar and the roll for any day • Each student's attendance history alongside the shots they fired that day • Approve or decline enrolment requests • Add students by mobile number, and manage admission plans • Approve deletion of a shot the target registered in error ABOUT FEES Any fees shown in the app are the admission and plan fees charged by a shooting academy for in-person coaching at its range. They are not purchases of app features or digital content, and no part of the app is locked behind a payment.

Screenshots

TrimixBlending1 screens
SpolynEST4 screens

Verdict

The call

The clearest difference is update cadence: SpolynEST at every 5 days against TrimixBlending's every 14 months. SpolynEST also leads on iOS requirement (15.0 vs 26.5). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

TrimixBlending ships an update every 14 months, SpolynEST every 5 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 4 level
TrimixBlending versus SpolynEST: the parameters behind the verdict, then further details
ParameterTrimixBlendingSpolynEST
PriceFreeFree
Update frequencyEvery 14 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.515.0 — better
Further details — not scored
Size4 MB99 MB
Age rating4+4+
DeveloperCostas BakopanosSpolyn Ventures PVT LTD

In-app purchases

None

TrimixBlending

No in-app purchases

None

SpolynEST

No in-app purchases

Questions

Is TrimixBlending free?
TrimixBlending is free to download, with no in-app purchases.
Is SpolynEST free?
SpolynEST is free to download, with no in-app purchases.
Do TrimixBlending or SpolynEST have ads?
Neither TrimixBlending nor SpolynEST shows ads.
Which is updated more often, TrimixBlending or SpolynEST?
TrimixBlending ships an update every 14 months, and SpolynEST every 5 days. Most recently, TrimixBlending was updated on October 25, 2026 and SpolynEST on October 31, 2026.

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