Comparison

Atom (Site Engineer) vs ACE Wizard TM44 AC Inspections

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

Head to head
About

Atom (Site Engineer)

Features
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Site Engineer is a fully integrated mobile application that runs side by side with Atom. Empower your staff to instantly send and receive jobs, sites, contacts and important documentation to keep your business flowing at the speed you expect. Staff record time spent and parts used on jobs and obtain customer sign off whilst on site and update the office automatically giving management a real time overview of work and resources. This app provides all the features & functionality to allow your field based team to manage jobs they have been assigned. With Site Engineer you can: 1. Have full visibility of jobs assigned to you. 2. Complete Task lists. 3. Complete customised electronic documents. 4. Attach documents received from third party vendors to jobs. 5. View full details of sites and maintenance plans. 6. Manage your statutory F-Gas requirements.

About

ACE Wizard TM44 AC Inspections

Features
Read full description

Developed to minimise the report time taken to complete Air Conditioning Energy Assessments (TM44’s). This all-in-one mobile solution helps assessors gather essential report data and complete inspections whilst they are out on site. It also includes access to the ACE Wizard AC system data base whether on or off-line, allowing assessors to build asset lists and inspect systems even in buildings with poor Wi-Fi. • iOS Mobile and Tablet optimised • Reduce report writing time • Access to thousands of validated AC systems while on site • Provides Cooling, Heating, EER/COP/SEER/SCOP & Refrigerant data • Access to HRU database while on site • Works off-line • Sync to ACE at anytime (requires internet/network connection) • Create a 'Sampled System' or 'Full External Plant’ Asset List • Check, Edit & Review an existing Asset List • Sample systems • Access to personal System Sampling Templates • Capture Building, System, Area, Controller notes for off-site review • Supports voice to text conversion (requires compatible device) • Supports handwriting to text (requires compatible device) • Permits the viewing of ‘Job Notes’ prepared in advance by administration teams • Allows support staff to start producing a report Not An ACE Wizard Assessor? If you are not an ACE Wizard Assessor, you will need to contact us about signing up and unlocking the benefits of carrying out an air conditioning energy assessment on the most advance TM44 software available. Designed by assessors to help assessor provide the best TM44 reports possible. Professional reports with on-line access for you and your clients. Please contact us at: support@acewizard.co.uk

Screenshots

Atom (Site Engineer)4 screens
ACE Wizard TM44 AC Inspections1 screens

Verdict

The call

The clearest difference is update cadence: ACE Wizard TM44 AC Inspections at every 3 days against Atom (Site Engineer)'s fortnightly. ACE Wizard TM44 AC Inspections also leads on iOS requirement (13.0 vs 15.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Atom (Site Engineer) ships an update fortnightly, ACE Wizard TM44 AC Inspections every 3 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 4 level
Atom (Site Engineer) versus ACE Wizard TM44 AC Inspections: the parameters behind the verdict, then further details
ParameterAtom (Site Engineer)ACE Wizard TM44 AC Inspections
PriceFreeFree
Update frequencyFortnightlyEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size51 MB61 MB
Age rating4+4+
DeveloperSaphire Computers LimitedACE Wizard TM44 AC Inspections

In-app purchases

None

Atom (Site Engineer)

No in-app purchases

None

ACE Wizard TM44 AC Inspections

No in-app purchases

Questions

Is Atom (Site Engineer) free?
Atom (Site Engineer) is free to download, with no in-app purchases.
Is ACE Wizard TM44 AC Inspections free?
ACE Wizard TM44 AC Inspections is free to download, with no in-app purchases.
Do Atom (Site Engineer) or ACE Wizard TM44 AC Inspections have ads?
Neither Atom (Site Engineer) nor ACE Wizard TM44 AC Inspections shows ads.
Which is updated more often, Atom (Site Engineer) or ACE Wizard TM44 AC Inspections?
Atom (Site Engineer) ships an update fortnightly, and ACE Wizard TM44 AC Inspections every 3 days. Most recently, Atom (Site Engineer) was updated on November 3, 2026 and ACE Wizard TM44 AC Inspections on October 31, 2026.

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