Comparison

StrucMaster HD vs Revvy

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

Head to head
About

StrucMaster HD

This app allows users to define and analyze structural mechanics problems on their iPad. It offers powerful functions for internal force diagrams, dynamics, influence lines, and stability analysis, with detailed solving steps provided by AI. Users can create complex structures with non-integer element lengths.

Highlights
  • Define custom structures
  • Internal force diagram analysis
  • Dynamics and stability analysis
  • Influence line calculations
  • AI-powered detailed solving steps
  • MultiSelect command for complex structures
  • Offline analysis
Read full description

【Introduction】 You will enjoy the procedure of defining your own structure with only several steps and have it analyzed by this StrucMaster HD. Powerful functions inside can deal with internal force diagram, dynamics, influence line and stability analysis. The Intelligence part can provide detailed solving steps. The MultiSelect command can help you establish the large structure just as in CAD, it can also help designers define structures with non-integer length elements. All of the procedures are done by the artificial intelligence in your iPad, no matter whether you are connected to the Internet. Convenient, powerful, no delays, what are you waiting for? Actually, you can download another app, named StrucMaster, if you want to analyze the structure on your iPhone. But the iPad version is more elegant, which takes us most of efforts. If you have any question, you can contact us by our e-mail address structuremaster@163.com or tell us in Facebook. Our Facebook website: https://www.facebook.com/StrucMaster

About

Revvy

Features
Read full description

Revvy - Car Maintenance Tracker Keep your car in shape without the hassle. Revvy is the simplest way to log service history, track fuel costs, set maintenance reminders, and understand what you're spending on your vehicle. Own one car or several, Revvy keeps everything organized in one place. No account needed, no subscription required. SERVICE HISTORY Log every oil change, tyre rotation, brake job, or repair with date, mileage, cost, and workshop. Your full service history is always a tap away. MAINTENANCE REMINDERS Never miss a service again. Set reminders by date (every 12 months) or by mileage (every 10,000 km) and Revvy will notify you when it's time. FUEL TRACKING Record every fill-up and see your total fuel spend over time. Track litres, cost, and odometer to keep an eye on running costs. COST STATS See exactly what each car costs you. Broken down by year, by service category, and cost per kilometre. Spot trends and plan ahead with 6-month cost predictions. MULTIPLE VEHICLES Add as many cars as you need. Each vehicle gets its own colour, service history, reminders, and stats. ICLOUD SYNC Your data syncs automatically across all your Apple devices via iCloud. Private, secure, and no account required. EXPORT Export your full service history as a PDF or CSV file, useful when selling a car or visiting a new workshop. Revvy works for all vehicle types including petrol, diesel, electric, hybrid, and motorcycles.

Screenshots

Revvy4 screens

Verdict

The call

The clearest difference is in-app purchases: Revvy at none against StrucMaster HD's 1. Revvy also leads on update cadence (daily vs every 6 months). StrucMaster HD's advantage is iOS requirement (8.0 vs 26.2). On price, 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. StrucMaster HD sells 1 one-off in-app purchase. Revvy asks for nothing beyond the download.

UpkeepUpdate frequency

StrucMaster HD ships an update every 6 months, Revvy daily. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

Scorecard3 real differences · 7 level
StrucMaster HD versus Revvy: the parameters behind the verdict, then further details
ParameterStrucMaster HDRevvy
PriceFreeFree
Rating2.3 (3 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 6 monthsDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPadiPhone, iPad — better
Requires iOS8.0 — better26.2
Further details — not scored
Size86 MB7 MB
Age rating4+4+
Developer颖达 陈Feda Hadziselimovic

In-app purchases

1 purchases

StrucMaster HD

One-time1
  • Advanced Function Forever$3.99
None

Revvy

No in-app purchases

Questions

Is StrucMaster HD free?
StrucMaster HD is free to download, with in-app purchases available.
Is Revvy free?
Revvy is free to download, with no in-app purchases.
Do StrucMaster HD or Revvy have ads?
Neither StrucMaster HD nor Revvy shows ads.
Which is updated more often, StrucMaster HD or Revvy?
StrucMaster HD ships an update every 6 months, and Revvy daily. Most recently, StrucMaster HD was updated on October 24, 2026 and Revvy on October 8, 2026.

Other comparisons