Comparison

FieldServiceOS vs Arez AI

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

Head to head
About

FieldServiceOS

Features
Read full description

FIELD SERVICE MADE SIMPLE Schedule. Invoice. Done. FSOS (Field Service Operating System) is the complete business management app built exclusively for contractors, handymen, and field service professionals who need to focus on work, not paperwork. WHY FIELD SERVICE PROS CHOOSE FSOS Quote and Schedule in Seconds Create professional quotes (on-site or remote), convert them to jobs with one tap, and manage your entire schedule from your phone. Never double-book again with automatic conflict detection. Invoice Customers in Under 5 Seconds Complete a job and generate a professional PDF invoice instantly. Send via text or email. Track drafts, sent invoices, and payments - all from your pocket. Smart Scheduling Intelligence Real-time travel time calculations between jobs. Automatic departure suggestions so you are never late. See conflicts, gaps, and breaks in your schedule at a glance. Business Analytics That Matter Track revenue by day, week, and month. Monitor quote conversion rates. Identify your top customers. See your business performance with clear, actionable insights. CORE FEATURES Professional Quotes - Create on-site appointment quotes or remote estimates - Track sent, accepted, and declined quotes - Convert accepted quotes to scheduled jobs instantly - Full quote lifecycle management Smart Job Scheduling - Calendar and list views - Automatic conflict detection - Real-time travel time between jobs - Departure time suggestions - One-tap call, text, or navigate to customers Lightning-Fast Invoicing - Generate PDF invoices in under 5 seconds - Customizable line items - Send via text message or email - Save as draft and send later - Track invoice status (draft, sent, paid) - Original vs. final price comparison Business Intelligence - Revenue tracking (based on payment dates) - Quote conversion analytics - Job and invoice pipeline overview - Top customer insights - Time tracking and averages - Collapsible sections for focused viewing Customer Management - Store contact info and addresses - MapKit address autocomplete - Quick actions (call/text/navigate) - Full job and invoice history per customer PRICING Free Forever - Up to 5 customers - Unlimited jobs, quotes, and invoices - Full feature access (scheduling, analytics, invoicing) - No watermarks, no limitations on core features Pro - $14.99/month - Everything in Free - Unlimited customers - Cancel anytime WHO IT'S FOR Perfect for solo operators and small teams: Contractors, Handymen, Plumbers, Electricians, HVAC technicians, Landscapers, Cleaners, Pool service, and any field service professional. BUILT FOR IPHONE Designed exclusively for iPhone with smooth, responsive performance. Real-time cloud sync keeps your data safe and accessible across devices. PRIVACY FIRST Your customer data, job information, and business records are yours. We do not share, sell, or access your data. Anonymous accounts available - no email required. START FREE TODAY Download now and manage up to 5 customers completely free. Upgrade to Pro when you are ready to scale. Schedule. Invoice. Done. By downloading this app, you agree to the Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Arez AI

This app streamlines contractor workflows by generating instant, itemized estimates from voice or text descriptions, photos, or uploaded plans. It also handles proposals, e-signatures, invoicing, online payments, job scheduling, and expense tracking.

Highlights
  • AI-generated itemized estimates
  • Voice and text job descriptions
  • Photo and blueprint analysis
  • Branded proposals with e-signatures
  • Online invoicing and payments
  • Job scheduling and crew clock-in
  • Receipt scanning and job costing
Features
Read full description

Arez AI is contractor software that writes the estimate for you. Describe the job by voice or text, send a photo, or upload the plans, and get an itemized estimate with materials, labor hours and your markup in less than 1 minute. Then send the proposal, get it signed, invoice the client and get paid, all from your phone. Built for HVAC, plumbing, electrical, roofing, remodeling, painting, flooring and handyman contractors, and for general remodelers and builders with crews of 1 to 15 people. AI ESTIMATES - Talk through the job in English or Spanish, or mix both - Send a photo with the size; Arez lists what it assumed and prices it - Upload blueprint PDFs for a scope takeoff (Agency plan) - Sections and line items with quantity, unit and price; labor in hours at your rate - Good, better, best options side by side in one estimate - Change anything by saying it: "Add a towel bar", "Make it a walk-in shower" - Uses your labor rates, your markup and the prices you correct, and learns how you bid PROPOSALS, CHANGE ORDERS AND E-SIGNATURE - Turn an estimate into a branded proposal with your payment schedule - Clients review and sign on their phone, in English or Spanish - Price change orders and get them signed before the extra work starts INVOICES AND ONLINE PAYMENTS - Invoice from the job, with deposits and milestones - Clients pay online by card or bank transfer RUN THE JOB - Today view: today's visits and who is on site - Schedule visits from the job or by telling the chat - Crew clock-in from the app or a shared board, no login needed for crew - Hours to check, asked as simple questions, and a pay sheet you mark paid - Tasks with photos for each job - Team messages in every job, plus a team chat for the whole company JOB COSTS AND RECEIPTS - Snap or share a receipt to Arez; it reads the vendor and total - Receipts and crew labor land on the job next to the estimate YOUR TEAM - Owner, manager and field roles; your crew sees the job, not your margins - Works on iPhone, iPad, Android and the web with one account PLANS Free to download with a 7-day free trial. Plans: Starter, Professional and Agency, billed monthly. Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel in your App Store account settings. Terms: https://ai-arez.com/terms Privacy: https://ai-arez.com/privacy Support: https://ai-arez.com/support

Screenshots

FieldServiceOS4 screens
Arez AI4 screens

Verdict

The call

The clearest difference is update cadence: FieldServiceOS at every 2 days against Arez AI's every 5 days. Arez AI's advantage is iOS requirement (15.1 vs 18.6). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. FieldServiceOS sells 1 in-app purchase, starting at $14.99 per month and Arez AI sells 3 in-app purchases, starting at $79.00 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

FieldServiceOS ships an update every 2 days, Arez AI every 5 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 7 level
FieldServiceOS versus Arez AI: the parameters behind the verdict, then further details
ParameterFieldServiceOSArez AI
PriceFreeFree
Rating—5.0 (3 ratings) — better
Number of ratings—3 — better
Update frequencyEvery 2 days — betterEvery 5 days
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.615.1 — better
Further details — not scored
Size22 MB41 MB
Age rating17+4+
DeveloperAitor RecaldeGERARDO MARTINEZ GOMEZ

In-app purchases

1 purchases

FieldServiceOS

Subscriptions1
  • PRO Monthly$14.991 Month
3 purchases

Arez AI

Subscriptions3
  • Starter$79.001 Month
  • Professional$159.001 Month
  • Agency$259.001 Month

Questions

Is FieldServiceOS free?
FieldServiceOS is free to download, with in-app purchases available.
Is Arez AI free?
Arez AI is free to download, with in-app purchases available.
Do FieldServiceOS or Arez AI have ads?
Neither FieldServiceOS nor Arez AI shows ads.
Which is updated more often, FieldServiceOS or Arez AI?
FieldServiceOS ships an update every 2 days, and Arez AI every 5 days. Most recently, FieldServiceOS was updated on October 25, 2026 and Arez AI on October 31, 2026.

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