Comparison

iSurv 7 vs The Chippy Calc

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

Head to head
About

iSurv 7

This app offers real-time situational awareness for field teams. It enables users to share live locations, photos, voice messages, and annotated maps. Be aware that continuous background GPS and VoIP usage may impact battery life and data charges.

Highlights
  • Real-time location sharing
  • Photo sharing
  • Voice message capabilities
  • Map annotation tools
  • Situational awareness for teams
Features
Read full description

iSurv 7 provides real time situational awareness to teams in the field. Users can share location, photos, voice messages and map annotation. Note : This app uses background GPS and VOIP services which can increase battery use and data charges. "Continued use of GPS running in the background can dramatically decrease battery life."

About

The Chippy Calc

This app provides carpenters, builders, and DIYers with precise, visual construction calculations. It offers specialized tools for stairs, decks, rafters, and more, with support for both metric and imperial units. All calculations can be saved and accessed offline.

Highlights
  • Visual results with scaled diagrams
  • Metric and imperial unit support
  • Offline functionality
  • 14+ specialized construction calculators
  • Stair, deck, and rafter calculations
  • Linear cut list optimization
Features
Read full description

The Chippy Calc helps carpenters, builders, and DIYers work faster with precise, visual calculations. See measurements clearly on screen, switch seamlessly between metric and imperial, and keep your work saved for later — even when you are offline. Built by a qualified carpenter in Melbourne, the app focuses on real site workflows. Calculations are paired with scaled diagrams so you can verify inputs at a glance and reduce mistakes. Key capabilities: - Visual results alongside every calculation - Universal units with metric and imperial support - Works fully offline for on-site use - 17+ specialized calculators designed for construction tasks Popular calculators include: - Stair calculator for rise/run, step count, and stringer details - Decking calculator for boards, picture frames, overhangs, fascia, and screws - Rafter calculator for lengths, plumb/seat cuts, tails, and pitch for gable and skillion - Housed stringers for stopped or through housings with detailed set-out diagrams - Arc calculator for radius, diameter, chord, rise, arc length, and wall offsets - Slope and fall for gradients, ratios, levels, and drainage runs - Balustrade spacing for compliant gaps and end margins - Even spacing to distribute items with equal end gaps or center options - Linear cut list to optimize stock lengths and reduce waste - Right angle and oblique triangle solvers - Slab and concrete for holes, piers, slabs, and beams - Raked walls for precise stud lengths on sloped walls Who it is for: - Carpenters and tradies who need reliable, fast results - Builders, site supervisors, apprentices, and DIY homeowners Support: - Help guides are included for each calculator - Contact: support@thechippycalc.com - Privacy: https://thechippycalc.com/privacy Build smarter. Calculate faster. See your measurements clearly with The Chippy Calc. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

iSurv 73 screens
The Chippy Calc4 screens

Verdict

The call

The clearest difference is review sentiment: The Chippy Calc at 100% against iSurv 7's 33%. iSurv 7's advantage is in-app purchases (none vs 3) and update cadence (every 2 weeks vs every 2 months). On price, ads, device support and iOS requirement 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. The Chippy Calc sells 3 in-app purchases, starting at $3.99 per month. iSurv 7 asks for nothing beyond the download.

UpkeepUpdate frequency

iSurv 7 ships an update every 2 weeks, The Chippy Calc every 2 months. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
iSurv 7 versus The Chippy Calc: the parameters behind the verdict, then further details
ParameteriSurv 7The Chippy Calc
PriceFreeFree
Rating—4.5 (2 ratings) — better
Positive reviews33.3% of reviews100.0% of reviews — better
Number of ratings—2 — better
Update frequencyEvery 2 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.4
Further details — not scored
Size175 MB76 MB
Age rating4+4+
DeveloperSecure Hub Pty LtdVike Digital Pty Ltd

Customer experience

iSurv 7

Written reviews3 reviews
Positive33.3%
Neutral33.3%
Negative33.3%

The Chippy Calc

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

iSurv 7

No in-app purchases

3 purchases

The Chippy Calc

Subscriptions2
  • Monthly3 Days trial$3.991 Month
  • Annually$19.991 Year
One-time1
  • Lifetime Premium Access$79.99

Questions

Is iSurv 7 free?
iSurv 7 is free to download, with no in-app purchases.
Is The Chippy Calc free?
The Chippy Calc is free to download, with in-app purchases available.
Do iSurv 7 or The Chippy Calc have ads?
Neither iSurv 7 nor The Chippy Calc shows ads.
Which is updated more often, iSurv 7 or The Chippy Calc?
iSurv 7 ships an update every 2 weeks, and The Chippy Calc every 2 months. Most recently, iSurv 7 was updated on October 24, 2026 and The Chippy Calc on October 24, 2026.

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