Comparison

Mitra vs Project Engineer

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

Head to head
About

Mitra

This AI-powered assistant manages your phone calls, making and answering them on your behalf. It bypasses automated systems, handles group calls, and offers personalized conversations with voice cloning and multilingual support. Manage calls seamlessly from any device.

Highlights
  • AI makes and answers calls
  • Personalized conversations
  • Parallel and group calling
  • Multilingual and voice cloning
  • Instant internet search during calls
  • Learns and adapts to user
  • Real-time call management
Features
Read full description

Mitra is the AI assistant that represents you on phone calls. It makes and answers calls, follows your instructions, and helps you get things done. It learns your preferences and keeps track of the details, with an emphasis on privacy, security, and control. Key features • Make and answer calls: Let Mitra coordinate plans, arrange appointments, resolve questions, and follow through on your behalf. • On your own number: Mitra makes and answers calls using the number people already know. • Talk naturally: Tell Mitra what you need by text or voice. It remembers the context and preferences you share. • Stay involved: Listen live, read transcripts, or join a call. Choose when Mitra should ring you. • Review conversations: Find recordings, transcripts, and summaries after your calls. • Manage your day: Keep your to-dos, plans, and important updates together. • Connect your apps: Let Mitra find information, send emails, update your calendar, and work with your files. • Use a secure browser: Get help finding information and completing tasks on websites. • Set your boundaries: Choose what to share, what to connect, and approve actions that need your permission. • Make it yours: Customize your assistant or create separate assistants for different responsibilities. Terms of Use: https://www.getmitra.com/terms-of-use Privacy Policy: https://www.getmitra.com/privacy-policy

About

Project Engineer

Features
Read full description

Project Engineer is a complete engineering toolkit for iPhone and iPad: hundreds of technical calculators across the disciplines you actually use, in one clean, fast, results-focused app. No more juggling spreadsheets, textbooks, lookup tables, and one-off websites. Enter your inputs and get clear, instantly readable results, with the theory and equations behind every answer. INSTANT METRIC ↔ IMPERIAL Switch any input or result between metric and imperial units with a single tap. No re-typing, no manual conversions. Every value updates on the spot. BUILT FOR REAL ENGINEERING WORK Project Engineer spans civil, structural, environmental, mechanical, electrical and more, for example: - Manning's equation for pipe and open-channel flow - Hydraulics, hydrology & stormwater - Structural steel, reinforced concrete & connections - Geotechnical, foundations & retaining walls - Thermodynamics, heat transfer & fluid mechanics - Roads, traffic & geometric design - Electrical, building services & acoustics - Mathematics, numerical methods & statistics - Solar position & PV sizing …and many more, with new calculators on the way. SEE THE WORKING Every calculator includes a theory section with the governing equations, variable definitions and reference sources, so you can see exactly how a result was reached and check it against your own working. LIVE-DATA TOOLS (PREMIUM) A standout you won't find in ordinary calculator apps: calculators that pull real-world climate and environmental data from live sources to give site-specific results, including rainwater tank sizing, irrigation demand, reservoir yield and pond-level exceedance. Turn textbook formulas into answers grounded in the real conditions at your location. DESIGNED FOR CLARITY & SPEED - Instant metric/imperial switching on every value - A consistent, distraction-free layout so the answer is always front and centre - Fast, on-device calculations - Save your results and sync them across devices - Mark favourites for the tools you use most SIMPLE, FAIR PLANS - Free: a selection of calculators to get started - Pro: the full standard library, unlimited saved results, favourites, and cloud sync - Premium: everything in Pro, plus live-data tools and early access to new features WHO IT'S FOR Practising engineers, designers, drafters, technicians, and engineering students who want dependable calculations without the clutter, at the desk or in the field. Project Engineer is a calculation aid. Results should be checked and applied by a suitably qualified person in line with the relevant codes and standards. Project Engineer continues to improve based on your feedback. Have a request or spotted something? Reach us anytime through the in-app contact form. Subscriptions are auto-renewable and billed through your Apple ID; they renew unless cancelled at least 24 hours before the period ends, and you can manage or cancel anytime in your device settings. Terms of Service: https://projectengineer.app/terms Privacy Policy: https://projectengineer.app/privacy

Screenshots

Mitra4 screens
Project Engineer4 screens

Verdict

The call

The clearest difference is ads: Project Engineer at none against Mitra's shown. Project Engineer also leads on iOS requirement (15.1 vs 18.0). On price, update cadence, 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. Mitra sells 21 in-app purchases, starting at $8.00 per month and Project Engineer sells 4 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Mitra ships an update every 5 days, Project Engineer weekly. The most recent releases landed on October 20, 2026 and October 8, 2026 respectively.

Scorecard2 real differences · 8 level
Mitra versus Project Engineer: the parameters behind the verdict, then further details
ParameterMitraProject Engineer
PriceFreeFree
Rating4.6 (371 ratings) — better—
Positive reviews77.2% of reviews—
Number of ratings371 — better—
Update frequencyEvery 5 days — betterWeekly
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.1 — better
Further details — not scored
Size123 MB73 MB
Age rating12+4+
DeveloperDeusMachina, Inc.Shaw Abrey

Bugs and requests

Mitra

Reported bugs

10 issues
  • Unable to send verification code
  • Invalid code during sign-up
  • App freezes on logo screen
  • App corrupts phone, making it hard to remove
  • Mitra calls back vendors/customers when issue addressed
Show 5 more
  • Mitra fabricates information and case numbers
  • Mitra continues to call after being instructed to cease
  • Voice quality is bad
  • Voice is not the selected one
  • Sign up is broken

Requested features

11 requests
  • AI for texting
  • More voice options
  • Complete UI overhaul
  • Dedicated greeting customization
  • Send/receive text messages
Show 6 more
  • Dedicated notification area
  • Add color to the app
  • Customer support button
  • Allow Mitra to search the internet
  • Ability to select phone menu options (e.g., dial 0 for operator, enter extension)
  • Dark mode option

Project Engineer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

21 purchases

Mitra

Subscriptions10
  • Monthly Plus$8.001 Month
  • Mitra Pro1 Month trial$30.001 Month
  • Mitra Pro$30.001 Month
Show 7 more
  • Yearly Plus$80.001 Year
  • Mitra Premier1 Month trial$90.001 Month
  • Mitra Premier$90.001 Month
  • Mitra Prime1 Month trial$300.001 Month
  • Mitra Prime$300.001 Month
  • Mitra Pro$300.001 Year
  • Mitra Premier$900.001 Year
One-time11
  • 10 Mitra Minutes$0.99
  • 20 Mitra Minutes$1.99
  • 30 Mitra Minutes$2.99
Show 8 more
  • 60 Mitra Minutes$5.99
  • 120 Mitra Minutes$11.99
  • 5 Call Hours$30.00
  • 10 Call Hours$60.00
  • 15 Call Hours$90.00
  • 16 Call Hours$239.99
  • 2,700 Credits$269.99
  • 20 Call Hours$300.00
4 purchases

Project Engineer

Subscriptions4
  • Pro7 Days trial$5.991 Month
  • Premium7 Days trial$12.991 Month
  • Pro (Annual)7 Days trial$49.991 Year
Show 1 more
  • Premium (Annual)7 Days trial$99.991 Year

Questions

Is Mitra free?
Mitra is free to download, with in-app purchases available.
Is Project Engineer free?
Project Engineer is free to download, with in-app purchases available.
Do Mitra or Project Engineer have ads?
Mitra shows ads; Project Engineer does not.
Which is updated more often, Mitra or Project Engineer?
Mitra ships an update every 5 days, and Project Engineer weekly. Most recently, Mitra was updated on October 20, 2026 and Project Engineer on October 8, 2026.

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