A vs Invoice & Estimate App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
A
This app simplifies structural analysis for engineers and architects. It uses Direct Stiffness Analysis to calculate shear forces, bending moments, and deflections for beams, trusses, and frames. Get instant results and detailed reports for documentation and learning.
- Direct Stiffness Analysis
- Beam, truss, and frame analysis
- Shear force, bending moment, deflection calculations
- User-friendly interface
- Detailed analysis reports
- Educational resource
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A-Projects: Structural Analysis Simplified Unlock the power of structural analysis with A-Projects, your ultimate companion for engineers and architecture enthusiasts! Whether you’re designing beams, trusses, or frames, our app utilizes Direct Stiffness Analysis to deliver accurate solutions for shear forces, bending moments, and deflections. Key Features: User-Friendly Interface: Intuitive navigation that allows you to easily input data and visualize results. Comprehensive Design Tools: Analyze various structures including beams, trusses, and frames with precision. Instant Results: Get quick calculations for shear forces, bending moments, and deflections at your fingertips. Detailed Reports: Generate in-depth analysis reports to help in documentation and presentations. Educational Resource: Ideal for students and professionals alike, enhancing learning and reinforcing concepts in structural engineering. Transform your approach to structural design with smart analysis tools that fit in your pocket. Download A-Projects today and step confidently into the world of structural engineering!
Invoice & Estimate App
This app simplifies job cost tracking and professional invoice generation for businesses. It allows for detailed itemization of costs, creation of estimates and payment receipts, and management of payments received and overdue. The app is designed for flexibility across various business types.
- Job cost tracking
- Professional invoice generation
- Estimate creation
- Payment receipt generation
- Overdue payment tracking
- Customer and material management
- Data sync across devices
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Pro Invoicer is a must-have app for any business. It makes the process of tracking job costs and generating professional invoices incredibly easy. It also generates job estimates and payment receipts, and keeps track of payments received/overdue. In summary it has the following features: - Maintains an itemised list of all costs associated with each job. - This can include materials/parts, labor costs (chargeable by the hour/day etc), and service costs (work charged as a whole, and not by the day/hour). - Fitting/installation costs for materials can be entered. - Clear summary of the job costs. - Has the flexibility to be suitable for any type of business, including sole proprietors. - The option of entering material costs with or without sales tax included. - The option of adding a markup percentage to material costs. - The option of adding sales tax on top of labor/service/fitting costs. - Multiple sales tax rates can be used if required. - Easy to generate estimates, which can be emailed to the customer (or printed) for their approval. - Easy to generate invoices, containing an itemised list of the costs/taxes, payments received, balance due, and payment instructions/notes. - Job items can be grouped into categories for easier tracking, and for clearer listing on estimates/invoices. - The ability to record which materials have been purchased, or not. - Stores details of payments received, and calculates any outstanding payment due. - Generates payment receipts, which can be emailed to the customer, or printed. - Generates a notification if a payment is overdue. - Take/store photos associated with each job. - Maintain a list of customers, job locations, and previously used materials, labor and service items. - No account/login required - all job data is held only on the app. - Search function to search the lists of jobs, customers, materials, etc. - Can list jobs for a selected customer, job status, date range or cost range. - Syncs data between different devices, (eg. iPhone and iPad), which are logged into the same iCloud account. - Comes with a 60 day free trial. Terms of use: https://smcanalysts.wordpress.com/iap-terms-of-use/
Screenshots
Verdict
The clearest difference is review sentiment: Invoice & Estimate App at 100% against A's 36%. Invoice & Estimate App also leads on rating (5.0 vs 3.0) and price ($2.99 vs $8.99). A's advantage is update cadence (every 3 weeks vs every 3 months). On ratings volume, ads, in-app purchases and monetization model 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
A costs $8.99 and Invoice & Estimate App $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Invoice & Estimate App holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews point the same way: 36% of A's written reviews are positive against 100% of Invoice & Estimate App's.
A ships an update every 3 weeks, Invoice & Estimate App every 3 months. Both last shipped on November 3, 2026.
| Parameter | A | Invoice & Estimate App |
|---|---|---|
| Price | $8.99 | $2.99 — better |
| Rating | 3.0 (2 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 35.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 | 4 — better |
| Update frequency | Every 3 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.0 | 12.2 — better |
| Further details — not scored | ||
| Size | 60 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Jutarus Ratanasethakul | SMC Analysts Ltd |
Customer experience
A
Invoice & Estimate App
In-app purchases
A
No in-app purchases
Invoice & Estimate App
No in-app purchases









