What is the best alternative to Aimtoget Wallet on iPhone?

Telecel Play (Ghana), C tier, #2 in mobile data top-up.

Is there a free alternative to Aimtoget Wallet?

Yes: Telecel Play (Ghana) (C tier, #2) is free, with no in-app purchases.

No. Aimtoget Wallet is #1 in mobile data top-up.

Aimtoget Wallet is B tier, #1 of the 7 tiered apps in mobile data top-up. Here is everything that competes with it on iPhone, in tier order.

2
Telecel Play (Ghana)C
Free download · ★ 4.6 · 17,605 ratings · score 68
Telecel Play lets Telecel customers in Ghana manage accounts, buy bundles and airtime, pay bills, and find stores.
3
GlobeOne: Get More from GlobeC
Free download · ★ 4.5 · 11,533 ratings · score 65
Manage Globe and TM accounts, buy promos, pay bills, and redeem rewards points in one app.
4
JumiaPayC
Free download · ★ 4.6 · 7,476 ratings · score 64
Free app for airtime and mobile data top-ups and for paying cable TV, electricity, internet and toll bills.
5
CheapDataSalesD
Free download · ★ 2.6 · 11 ratings · score 60
Free Productivity app listing data and airtime purchases, VTU top ups, and airtime sharing for all networks.
6
Yangaplug: Travel, Card, BillsD
Free download · ★ 3.3 · 339 ratings · score 53
Finance app offering a virtual USD Mastercard, travel booking, eSIMs, data and airtime top-ups, and bill payments.
7
9DataHubF
Free download · ★ 3.0 · 37 ratings · score 49
Not stated on the App Store.

What is the best alternative to Aimtoget Wallet on iPhone?: Telecel Play (Ghana), C tier, #2 in mobile data top-up.
Is there a free alternative to Aimtoget Wallet?: Yes: Telecel Play (Ghana) (C tier, #2) is free, with no in-app purchases.
Does anything rank above Aimtoget Wallet?: No. Aimtoget Wallet is #1 in mobile data top-up.