Tesaro vs ENGR*IT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tesaro
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Tesaro is the new name for S3XY Companion: a Tesla companion app for iPhone and Apple Watch, built for fast vehicle control, live status, and detailed insights into driving, charging, and parking. Control your vehicle in seconds: - Lock and unlock - Open and close frunk, trunk, doors, windows, and charge port - Start and stop charging - Set the charge limit - Start climate, defrost, Dog Mode, Camp Mode, seat heating, seat cooling, and steering wheel heating - Flash lights, honk, remote start, wake the vehicle, and trigger HomeLink Stay close to your Tesla: - Live vehicle status for battery, range, charging, climate, lock state, location, and current drive or parking state - Live Activities for charging, driving, and vehicle status - Home Screen, Lock Screen, Control Center, and Apple Watch widgets - Apple Watch app, complications, and quick actions for wrist-based control - Siri Shortcuts and App Intents for common vehicle commands Understand every trip and charge: - Trip history with maps, timeline scrubber, distance, duration, efficiency, energy, temperatures, and costs - Charging history with power, battery, energy, time, cost, and location details - Parking history with duration, battery change, energy loss, maps, and daily statistics - Overview charts for trips, charging, parking, drivers, and vehicle activity - Battery health, capacity history, degradation tracking, software history, and VIN information Built for everyday Tesla owners: - Multi-vehicle support - Customizable quick actions - Configurable notifications for trips, charging, security, climate, status changes, and commands - Saved locations and nearby charge locations - Charging plans and scheduling windows - Tibber electricity prices and Tibber-based charging automation - Bluetooth pairing and proximity actions for supported commands - Command history and in-app feedback reporting Some features require an active subscription. Tesaro is an independent app and is not affiliated with Tesla, Inc. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
ENGR*IT
This comprehensive toolkit combines standard, scientific, financial, and engineering calculators into a single application. It offers specialized tools for PCB design, embedded systems, power calculations, and programmer functions, allowing users to seamlessly transfer results between different calculators.
- 146 integrated calculators and tools
- Cross-disciplinary calculations
- Transfer values between calculators
- Circuit visualization with diagrams
- Engineering-style input with units
- PCB and embedded system tools
- Programmer and bitwise operations
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ENGR*IT is the ultimate calculator for everyone. Whether you need a powerful Standard or Scientific calculator, financial tools, engineering calculations, programmer functions, or bitwise operations, ENGR*IT brings them together in one massive technical toolkit built for engineers, technicians, makers, students, and anyone who works with real-world calculations. Instead of jumping between separate apps, web pages, notes, and reference sheets, ENGR*IT brings 146 calculators and engineering tools together in one focused workspace. CALCULATE ACROSS DISCIPLINES Work with electrical engineering, power, resistor and capacitor networks, PCB design, embedded systems and interfaces, Ohm’s Law, bitwise operations, programmer math, financial calculations, and standard/scientific math. ENGINEERING TOOLS THAT WORK TOGETHER ENGR*IT is designed as more than a collection of isolated calculators. Calculated values can be copied, pasted, shared, or moved directly into another calculator. Use “Move to…” to send a result into another compatible tool and continue your work without re-entering the value. CIRCUIT VISUALIZATION Supported electrical calculations include integrated circuit diagrams that reflect the selected formula and calculated values. Zoom, pan, fit the diagram to the screen, and share the complete calculation artifact. BUILT FOR REAL ENGINEERING INPUT ENGR*IT understands engineering-style values and units. Enter values such as kΩ, mA, µF, MHz, mil, mm, and inches using calculator-specific input controls designed for the type of value being entered. PCB AND EMBEDDED TOOLS PCB tools cover trace width and current, trace resistance and voltage drop, via current, microstrip and stripline, differential pairs, creepage and clearance, copper weight and thickness, AWG resistance, and wire voltage drop. Embedded tools include timers and prescalers, PWM, UART, SPI, I²C, CAN, ADC, DAC, quantization, sampling, and Nyquist calculations. POWER AND ELECTRICAL Work with DC and AC power, single-phase and three-phase systems, inductors, RLC circuits, voltage and current dividers, reactance, resonance, time constants, RMS/peak conversions, dB calculations, wavelength, Zener regulators, battery packs and runtime, and much more. PROGRAMMER + BITWISE Convert between DEC, HEX, OCT, and BIN, work with signed and unsigned values, choose common word sizes, and perform bitwise operations including AND, OR, XOR, NOT, shifts, rotates, set, clear, flip, and read bit operations. YOUR WORK, YOUR WAY ENGR*IT includes calculation history, configurable swipe favorites, global calculator search, exact tool deep-linking, light and dark appearance support, sharing, and persistent last-calculated-value tools. FREE TO START Standard and Scientific calculators remain available without Pro. Start a free 7-day ENGR*IT Pro trial to explore the complete toolkit. After the trial, continue using the free calculators or unlock ENGR*IT Pro Lifetime with a one-time in-app purchase. No subscription. No advertising. ENGR*IT — one engineering toolkit, built to keep the calculation moving.
Screenshots
Verdict
The clearest difference is iOS requirement: ENGR*IT at 15.6 against Tesaro's 26.0. 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
Both are free to download. Tesaro sells 6 in-app purchases, starting at $6.99 per month and ENGR*IT sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
| Parameter | Tesaro | ENGR*IT |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, Apple Watch | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 287 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Stefan Sturm | brian ignomirello |
In-app purchases
Tesaro
- For 1 Tesla monthly$6.991 Month
- For 2 Teslas monthly$14.991 Month
- For 3 Teslas monthly$19.991 Month
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- Premium for 1 Tesla yearly$69.991 Year
- Premium for 2 Teslas per year$149.991 Year
- Premium for 3 Teslas per year$199.991 Year
ENGR*IT
- 7-day TrialFree
- ENGR•IT Pro Lifetime$8.99









