ArcSite vs SUM NUM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ArcSite
This app allows contractors to create accurate floor plans and site layouts directly on-site. It streamlines the process of planning remodels, running takeoffs, generating professional proposals, and collecting payments, all from a mobile device.
- Sketch accurate floor plans on-site
- Plan remodels and renovations
- Run takeoff and generate material lists
- Create professional proposals and estimates
- Collect payment within the app
- Scan rooms with LiDAR and AR (Pro devices)
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ArcSite is the perfect CAD sketch and design tool for all levels, from beginners sketching out floor plans to experienced professionals taking on complex projects. No matter your experience, ArcSite puts intuitive CAD within everyone's reach. ArcSite goes beyond design: start with a drawing to capture data, calculate material quantities, and instantly create estimates and job reports in one place. Once you’re finished drawing with ArcSite’s floor plan creator, you can easily share and collaborate on projects, generate professional proposals, material lists, and estimates, and accept payments from anywhere. INTUITIVE CAD SKETCH & DRAWING TOOLS FOR ROOM & HOUSE DESIGN - *AI Trace: Sketch it, scan it, see your space. Turn a hand sketch, photo, or PDF into an editable, to-scale floor plan. *only available for iPad; iPhone features coming soon - Advanced 2D CAD-level precision without the CAD learning curve. - Create CAD floor plans from a map: Start a new drawing using a satellite image as your base. Enter an address to find a location, then zoom in or out to set boundaries; the scale will be set automatically. - Designed for everyone: Easy for first-time users, precise enough for professionals. - Export, Cloud sync, and collaborate: Your room design drawings export to PNG/PDF/DXF/DWG, save to the cloud, and (for professional users) flow directly into material takeoffs, estimates, and signed proposals. - Send proposals: Access Proposal Generation (based on your drawing). - Communicate visual context: Add location-based photos with markup to highlight project issues instantly for teams or customers. WORK FASTER & STAY ORGANIZED WITH FIELD-LEVEL PRECISION - Keep all of your project details in one place. - Customize products, forms, material types, quantity calculations, and pricing to match your data requirements. - Our mobile CAD app offers unmatched accuracy, whether with exact-to-scale drawings or quantities of materials and pricing. - Draw to scale with confidence: Our mobile CAD app makes it easy to get accurate measurements and pricing, every time. - Security - SOC 2 Type II compliant and ISO/IEC 27001 certified. SMART FEATURES FOR CAD FLOOR PLANS - *AR Room Scanner: Scan a room or space with your phone or iPad camera and get a scaled floor plan placed directly in the drawing canvas, no manual measuring. *only for Apple Pro devices - Smart Shapes and parametric objects: Walls, doors, windows, and shapes can snap into place, auto-count, and adjust as you draw or resize. - Quick-start template gallery: Pre-built templates save you time. WHO USES ARCSITE? - Sales Teams - Residential Contractors - Fencing Pros - Foundation Repair Experts - Designers, Architects - Creative Homeowners - Remodeling Pros - Inspectors - Auditors - General Contractors - And more WHAT ARE PEOPLE SAYING ABOUT ARCSITE? "I haven't found anything else that comes close to meeting my needs. With ArcSite I save hours on every estimate. Very easy to make accurate and professional-looking drawings, while on-site." - Colin, from JES Foundation Repair "In my opinion, there is no better program for our line of work, we will be much more productive in the long term." - Paul from Johnson Controls TERMS Free 14-day trial on all plans Terms of Service: https://www.arcsite.com/legal/terms Privacy Policy: https://www.iubenda.com/privacy-policy/184541 To continue using ArcSite after your trial, purchase a monthly or annual subscription plan (Draw Basic, Draw Pro, Takeoff, or Estimate). Each tier offers different features; details are in-app. AUTO-RENEWABLE SUBSCRIPTION INFO * Payment charged to Apple Account at confirmation of purchase * Subscription renews unless auto-renew is turned off 24 hours before the current period ends * Renewal charged within 24 hours before the end of the current period * Manage subscriptions or turn off auto-renewal in Account Settings after purchase * Unused portion of a free trial is forfeited upon subscription purchase
SUM NUM
This app helps manage inventory, convert measurements, and perform financial calculations for business operations. It features a calculator with history, a comprehensive unit converter, and advanced financial tools like interest and amortization calculations.
- Calculator with history
- Unit converter for mass, volume, length, temperature
- Financial calculator (interest, TVM, amortization)
- Save and reuse calculation results
- Export financial results to PDF
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Calculadora para el equipo Subway Guatemala. Cuadra inventarios, convierte convierte medidas y mejorando la productividad. CALCULADORA CON HISTORIAL • Desliza hacia abajo para guardar cualquier resultado • Toca un valor guardado para reutilizarlo al instante • Perfecta para sumar productos y cuadrar conteos sin perder el hilo CONVERSOR DE MEDIDAS Todo lo que necesitas para verificar pedidos y ajustar recetas: • Masa: kg, g, lb, oz, tonelada • Volumen: L, gal, oz líquida, taza, cucharada • Longitud: m, cm, ft, pulgadas • Temperatura: °C, °F • Tiempo y Área CALCULADORA FINANCIERA Herramientas avanzadas para administración: • Interés simple y compuesto • Valor del dinero en el tiempo (TVM) • Tablas de amortización • Exporta resultados en PDF
Screenshots
Verdict
The clearest difference is in-app purchases: SUM NUM at none against ArcSite's 11. SUM NUM also leads on rating (5.0 vs 4.7). ArcSite's advantage is ratings volume (9.2K vs 1) and update cadence (weekly vs monthly). 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
Both are free to download. ArcSite sells 11 in-app purchases, starting at $14.99 per month. SUM NUM asks for nothing beyond the download.
SUM NUM holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: ArcSite has 9.2K ratings behind it against 1, so its average is the more settled of the two.
ArcSite ships an update weekly, SUM NUM monthly. The most recent releases landed on October 27, 2026 and October 17, 2026 respectively.
| Parameter | ArcSite | SUM NUM |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (9.2K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 45.2% of reviews | — |
| Number of ratings | 9.2K — better | 1 |
| Update frequency | Weekly — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #198 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.4 — better | 15.6 |
| Further details — not scored | ||
| Size | 242 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Arctuition LLC | Subway de Guatemala SA |
Bugs and requests
ArcSite
Reported bugs
4 issues- Drawings not opening
- Walls not connecting properly
- Dimensions constantly shifting
- Unexpected auto-merging of objects
Requested features
5 requests- 3D support
- More affordable pricing options
- One-time purchase option
- Improved export options
- Better layering and floor management
SUM NUM
Not enough reviews yet to summarise bugs or requests.
In-app purchases
ArcSite
- Draw Basic$14.991 Month
- Draw Basic14 Days trial$14.991 Month
- Draw Pro$34.991 Month
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- Draw Pro14 Days trial$34.991 Month
- Draw Basic (Yearly)$119.991 Year
- Advanced$119.991 Month
- Advanced14 Days trial$119.991 Month
- Takeoff$119.991 Month
- Takeoff14 Days trial$119.991 Month
- Estimate14 Days trial$159.991 Month
- Estimate$159.991 Month
SUM NUM
No in-app purchases









