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Tips, guides, and insights from the Cela team.

Best Offline POS App for iPhone: 5 Honest Picks for 2026
October 27, 2026·7 min read·Mobile Apps

Best Offline POS App for iPhone: 5 Honest Picks for 2026

Compare 5 iPhone POS apps by what really works with no signal. Square, for example, expires offline card payments not uploaded within 72 hours.

How to Do a Stock Take: 7 Steps for a Small Shop
October 15, 2026·8 min read·Mobile Apps

How to Do a Stock Take: 7 Steps for a Small Shop

How to do a stock take in a small shop: plan, freeze sales, count twice, fix the gaps. One study found 65% of a retailer's stock records were wrong.

How to Calculate Reorder Point: Formula and Shop Example
October 9, 2026·7 min read·Mobile Apps

How to Calculate Reorder Point: Formula and Shop Example

Learn how to calculate reorder point with a simple formula, a safety stock step and a worked shop example: 8 sales a day and a 5-day lead time gives 72.