# What does Master Apps use?

Master Apps (masterapps.com.au) shows public evidence of 7 tools, according to runsonwhat (last checked 2026-10-07).

- Industry: Internet
- Size: 11–50 employees
- Based in: Sydney, Australia
- Founded: 1975
- LinkedIn: https://www.linkedin.com/company/master-apps

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Amazon Route 53](https://www.runsonwhat.com/reverse/route53) | DNS | DNS records |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [OpenAI](https://www.runsonwhat.com/reverse/openai) | AI | DNS verification records |  |

## Data & Observability

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [UptimeRobot](https://www.runsonwhat.com/reverse/uptimerobot) | Monitoring | Custom domain |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Microsoft 365](https://www.runsonwhat.com/reverse/microsoft-365) | Workspace | DNS verification records, Email records |  |
| [Let's Encrypt](https://www.runsonwhat.com/reverse/letsencrypt) | Security & Compliance | DNS records |  |
| [Postmark](https://www.runsonwhat.com/reverse/postmark) | Email Delivery | Email records |  |

## FAQ

### What tools does Master Apps use?

As of October 2026, runsonwhat has found 7 tools at Master Apps (masterapps.com.au) in public records. Edge & Hosting: Amazon Route 53. Application: OpenAI. Data & Observability: UptimeRobot. Company Ops: Microsoft 365, Let's Encrypt and Postmark. Last checked October 7, 2026.

### What email provider does Master Apps use?

Master Apps uses Microsoft 365 for email and office software, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through a DNS verification record for Microsoft 365 and email records. Microsoft 365 is used by 700,577 companies runsonwhat tracks.

### What monitoring tools does Master Apps use?

Master Apps uses UptimeRobot for monitoring, according to runsonwhat (October 2026). runsonwhat found UptimeRobot through a subdomain that points at UptimeRobot. UptimeRobot is used by 3,008 companies runsonwhat tracks.

### Does Master Apps use Amazon Route 53?

Yes. runsonwhat found Amazon Route 53 at Master Apps through DNS records that point at Amazon Route 53. Amazon Route 53 is a DNS tool used by 82,926 companies runsonwhat tracks.

### Does Master Apps use AI tools?

Yes. runsonwhat has found OpenAI at Master Apps; OpenAI, for example, through a DNS verification record for OpenAI. AI services called only from servers leave no public trace, so Master Apps may use more AI tools than these.

### Which companies have a tech stack similar to Master Apps's?

The companies with the stacks most like Master Apps' are Overview.ai, Nickel Technology, Solvertech s.r.o. and Tbc Healthcare, according to runsonwhat (October 2026). Each shares 2 to 3 tools with Master Apps, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what Master Apps uses?

runsonwhat reads public records only. Of the 7 tools at Master Apps, 5 were found through DNS records, 1 through email records and 1 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and masterapps.com.au about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/masterapps.com.au (updated October 2026). Counts are companies with direct public evidence of the tool (DNS records, certificates, website code, a real-browser crawl, subprocessor lists), so they are lower bounds. Methodology: https://www.runsonwhat.com/methodology.