Also:
A clear view of your usage and how the costs were attributed. Very few providers provide this, especially not to within an hour or so.
Having competitive data pricing with fluctuating data usage and not having to plan ahead for data bundles. This is a key one for me.
Customer service, however the hard part is getting that to scale as you get larger.
This model will work very well for my use case. Iām enjoying sticking SIM cards in every possible slot (no childish giggles 
).
Iāve been fortunate with Data recently as work has issued me an eSIM so Iām mooching the data from that but Iām moving the fiancĆ© over to Zevvle this month so her iFacebook machine (itās unfair to call it an iPhone because the Phone part never gets used) so sheāll be slurping quite a bit of data.
Overall the two big things for me are the Multi-SIM and the app which canāt be matched elsewhere. The only other plan Iāve had that came close was the EE Sharer Plan which theyāve now binned!
Isnāt the Ā£2/month for data only sim a line rental anyway? 
Iāve currently got three sims for the family and I just want to make sure I understand the new structure.
At the moment I pay nothing for the first SIM and then Ā£2 each for the extra sims. So comparing āstanding chargesā:
Old: Ā£4 New: Ā£15 ?
As a group we only made Ā£5 with of texts/calls so weāll be Ā£6 worse off before data?
Only two of the sims are really active in terms of data using 2.5 and 4.5 GB of data. The data currently costs us Ā£14 but it looks like that will now cost Ā£17?
It looks like weāll be roughly Ā£10 worse off? Have I got all the maths right?
If you get the ādata-onlyā sims are the calls still PAYG or are calls / texts blocked on that plan?
This is looking much better ā¦ With the aim cost could there be a nothing included mobile option for a lower price? I send < 5 texts a month and usually never call!
I do really agree with the teired system, it looks promising!
Note that youāll be grandfathered in so can keep the old pricing. Low usage is more expensive with the proposed pricing as you have seen.
Yep, Iām just working off of the assumption that grandfathered pricing doesnāt last forever so getting my numbers straight.
Given the frequency with which Zevvle are changing their pricing it seems fair to assume that any grandfathering will far outlive the lifetime of this pricing model 
Soā¦ we will include the lower option after all, and youāll have the choice of 2 SIMs: Ā£2/month with PAYG everything, or Ā£5/month with unlimited calls and texts. The line rental doesnāt feel great, but with both options itās a good compromise.
Iāll edit the original post as well.
That looks right, yes. Weāre going to keep the PAYG calls and texts after all, so itāll be a Ā£5 difference instead of ~Ā£10.
They will be PAYG now, yes.
This is a good change, which helps to get me to move over to the new pricing model.
I think the pricing around the 2-8GB range is maybe a tad higher than if be keen to go for, however still itās working out competitive compared to other PAYG bundles, 30 day contracts, even some longer contracts. That range of data use is a little less competitive. Itās a small price to pay for never having to worry about which bundle Iām on in advance, or having to predict my usage without spending loads by having a huge or unlimited tariff.
Iām on the border of paying more on quiet months and less on busier months compared to the current Zevvle pricing. Looking at my longer term usage I reckon itāll average out to be slightly more expensive, but with the peace of mind that if I do use a lot some months it wonāt cost significantly more.
Could the be another tier at around 15 or 20GB to go down to say 50p per GB?
Note that the data will still be charged per byte, so youāll only be charged for what you use. Really have to compare the low usage to PAYG pricing of competitors.
Hopefully the first GB will get a bit cheaper, Iāve wondered if more tiers with a shallower ramp would work better for the lower usage? Itās a trade-off problem between complexity and costs.
Is there any chance you can make the tiered pricing apply per-account instead of per-SIM? As to not penalise the users who have multiple devices - I can see having a main phone and an emergency phone, or a personal and a work phone (the latter might have less data being used), or a phone and a tablet/laptop/4G dongle.
Yes. This.
What about different bundles? You could keep the pay as you go, but different tarrifs with a certain amount of voice&data? Eg: Ā£7.50= 500mb Internet+300mins+300texts.
This was proposed very recently and to say it went down like a lead balloon is a bit of an understatement:
Weāll look into this!
Weāre definitely playing it safe(r) to start with; if we can get away with doing this we will.
Iām afraid not. 
We canāt make it work with our wholesale pricing, but theyāll still be the best PAYG rates around. If and when we can lower them, we will.
Sounds good. 
This seems to be better, I assume I can switch the two āactiveā sims to the Ā£5/month plan and put the āinactiveā sim on the Ā£2/month plan?
This will keep us at Ā£5 extra per month but will make any extra use cheaper than the old plan and we wonāt have to worry about call/text costs adding up.
Will the new pricing be based on the billing month or the calendar month? Is it possible to change the billing date so that it aligns with the calendar month and the analytics?
When we move to the new pricing, I presume it wonāt take account of the usage so far that month?
Will the line rental be pro-rata for the rest of the billing month?
Yes! If itās completely inactive we can always disable it temporarily as well so you donāt have the Ā£2/month.
It wonāt be by default, but send us a message and we can change it for you!
To keep it simple, Iām afraid not.
Hello! Weāre postponing this until Saturday, December 14th. Product updates post-election on Friday 13th might not be a good thing, eitherā¦