Comparison

Gacha Architect vs SRT Flow

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

Head to head
About

Gacha Architect

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"Stop guessing. Start calculating with mathematical precision." Most gacha calculators rely on Monte Carlo simulationsβ€”random trials that only give you an approximation. MirrorLab is different. We use DP-based state space analysis to provide the exact mathematical probability distribution for your pulls. β–  Day-One Support: Arknights: Endfield Optimized for the complex mechanics of Arknights: Endfield 1.0. Chartered Headhunting: Full implementation of the 120-pull Featured Guarantee (Spark). Arsenal Issue: Accurate modeling of the 80-pull guarantee and the 100/180/260... repeating mileage system. Hybrid Efficiency: Calculate how many Arsenal Tickets you’ll gain from character banners to plan your next 6-star weapon. β–  Why MirrorLab? Precision DP Engine: Forget the variance of Monte Carlo. Our engine uses recursive logic to calculate exact probabilities for every possible outcome. Refund Factor: Factor in 'Certificates' from duplicate pulls to determine your actual cost-per-pull and re-investment efficiency. Architect's Report: Visualize "Worst-Case Scenarios" and "Efficiency Zones" to optimize your spending and avoid mindless pulling. β–  Two Analysis Modes [Basic Mode] Quick Check Enter base rates, pity counters, and costs. Instantly see the pulls required for 50% / 90% / 99% success. Cost conversion to real-world items (e.g., pizza slices) for better financial perspective. [Pro Mode] Deep Dive Customize and edit Soft Pity curves. Get exact Expected Values and Standard Deviations. View detailed probability distribution histograms. β–  Roadmap: Coming Soon Full support for the following titles is coming soon: Genshin Impact Goddess of Victory: NIKKE Honkai: Star Rail Wuthering Waves β–  Key Features Works Offline: No internet required for calculations. Privacy First: No login, no data collection, no unnecessary permissions. Dark/Light Theme: Minimalist 'Mirror' interface designed for focus. Save & Share: Save your custom presets for any banner or game. Calculate before you pull. MirrorLab is the smartest sandbox for your gacha strategy.

About

SRT Flow

Features
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Key Features β€’ Generate audio-based subtitles after selecting a video β€’ Save translated/original subtitles (SRT, VTT) β€’ Export original text (TXT, CSV) β€’ Preview subtitles and check video overlays β€’ Cache-based processing for easy retry in case of task failure β€’ Supports Korean, English, and Japanese UI

Screenshots

Gacha Architect4 screens
SRT Flow4 screens

Verdict

The call

The clearest difference is update cadence: Gacha Architect at every 2 days against SRT Flow's monthly. Gacha Architect also leads on iOS requirement (13.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

UpkeepUpdate frequency

Gacha Architect ships an update every 2 days, SRT Flow monthly. The most recent releases landed on October 15, 2026 and October 25, 2026 respectively.

Scorecard2 real differences Β· 4 level
Gacha Architect versus SRT Flow: the parameters behind the verdict, then further details
ParameterGacha ArchitectSRT Flow
PriceFreeFree
Update frequencyEvery 2 days β€” betterMonthly
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS13.0 β€” better18.0
Further details β€” not scored
Size31 MB16 MB
Age rating4+4+
Developerkiha kwonchangok kim

In-app purchases

None

Gacha Architect

No in-app purchases

None

SRT Flow

No in-app purchases

Questions

Is Gacha Architect free?
Gacha Architect is free to download, with no in-app purchases.
Is SRT Flow free?
SRT Flow is free to download, with no in-app purchases.
Do Gacha Architect or SRT Flow have ads?
Both Gacha Architect and SRT Flow show ads.
Which is updated more often, Gacha Architect or SRT Flow?
Gacha Architect ships an update every 2 days, and SRT Flow monthly. Most recently, Gacha Architect was updated on October 15, 2026 and SRT Flow on October 25, 2026.

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